AAF catalogue

AmerTex® R-Serie

●● Exclusive bonding technology provides cleaner air

●● Low resistance to airflow●● High dust holding

capacity●● Available in synthetic

and natural executions●● Washable

R-series air filter media is made of synthetic fibres, except type R20Natural, which is made of natural fibres.An exclusive bonding technologyensures a high number of fibres persquare metre for a given weight.

All AmerTex R series media is whitecoloured. No colour pigments are needed to create a distinction betweenthe various media. The name of eachproduct together with its classificationaccording to EN779 is printed at regular intervals on the air leaving sideof each media roll, permitting easy product identification. R-Series media ischaracterized by a relatively low resistance to airflow and a high dustholding capacity.

ApplicationsSynthetic filter media.

The R15 Economy and R17 Durablemedia are recommended for use in lowpressure forced air convectors, windowventilation units, fan coils and as prefilter in paintspray cabins.

The R29 Standard media is for use inroom air conditioning units, hot airgenerators, air conditioning installations,home kitchen hoods and as prefilter inpaint spray cabins.

The R50 Super media is suitable for usein air conditioning installations in thefood industry, kitchen hoods, industrialventilation systems and as prefilter inpaintspray cabins.

Natural filter media

The R20 Natural media, consisting oflatex coated natural fibres structuredinto a porous and dense media, isrecommended for use in severeoperating conditions.

CleaningTypes R15 and R29 are washable to alimited extent. Types R17, R50 and R20are fully washable.The R-series media can be cleaned:● in warm water (30 - 40°C) with

addition of a household detergent, if necessary. Drying should be done on a flat surface. Do not rub or wring.

● by blowing with compressed air in opposite direction of filter airflow.

®

Synthetic and natural filter media

B E T T E R A I R I S O U R B U S I N E S S

AmerTex® R-Serie

RA-2-504-IN-4-0198

Technical Data

Type R15 Economy R17 Durable R29 Standard R50 Super R20* (30 mm)

Recommended face velocity (m/s) 1.5 1.5 1.5 1.5 2.0

Rated capacity (m3/h/m2) 5400 5400 5400 5400 7200

Rated initial resistance (Pa) 17 17 26 42 80

Recommended final resistance (Pa) 130 130 200 200 250

Average arrestance (%) 75 - 80 75 - 80 80 - 85 87 - 92 80

EN 779 classification G 2 G 2 G 3 G 4 G 3

Roll size (m) 2 x 20 2 x 20 2 x 20 2 x 20 Pads only

1 x 20 1 x 20 1 x 20 1 x 20

Packing polyethylene bags

Media colour white white white white brown

Flame retardancy according to DIN 53438 F1 F1 F1 F1 -

Max. operating temperature (˚C) 100 100 100 100 65

Washability limited good limited good good

* R20 media is also available in 20, 40 and 50 mm thicknesses

Airflo w Resistance

0 1.0 2.0 3.0 4.00

10

30

50

20

60

70

80

40

R 17, R 15

R 29

R 50R 20

Face Velocity (m/s)

Init

ial R

esis

tanc

e (

Pa)

© 1998 AAF International

AAF has a policy of continuous product research and improvement and reserves the right to change design and specifications without notice.

AAF-International B.V .P.O. Box 79281008 AC Amster damThe NetherlandsTel.: + 31 20 549 44 11 Fax: + 31 20 644 43 98

International AAF Offices:Vienna (A), Montreal (CDN), Dortmund (D),Vitoria (E), Paris (F), Cramlington (GB),Athens (GR), Milan (I), Riyadh (KSA), Mexico (Mex), Amsterdam (NL), Singapore,Istanbul (TR), Louisville, Ky (USA)

AAF Ag ents:Copenhagen (DK), Bangalore (IND)Oslo (N), Lisbon (P), Johannesburg (RSA), Dalsjöfors (S), Malmö (S), Helsinki (SF)

AmWashPleated Washable Filter

Washable

High dust holding capacity and long service life

Reduce the risk of fire

Low initial resistance

Lightweight and easy to install

Choice of media in the classification range G3 to F5 (EN779)

AmWash is specially designed for application in industrial andcommercial heating, ventilation and air conditioning systems. Forexample like:

AmWash is a lightweight panel filter with several special featureslike reusable aluminum steel frame, made of synthetic fiber andcharacterized by a relatively low resistance to airflow, reduce risk offire, washable and easy to install. Filter media with the thickness of10mm and 20mm ensure high dust holding capacity.

Advantages

AmWash is available with 3 classifications: G3, F4 and F5 inaccordance with EN779.

Choice of Media

Owing to the excellent dust holding capacity, AmWash can be usedas prefilter to higher efficiency filters or as main filters. As prefilter,AmWash protect more expensive main filters from prematurereplacement while as main filter it improves the quality of indoor air.

High dust holding capacity

Easy to install

AmWash has a sturdy, long lasting galvanized steel frame whichoffers great resistance in harsh operating conditions. Due to its lightweight and compact size (only 46mm depth), it is relativelyinexpensive to ship and easy to handle and install. If required,AmWash can be supplied with a stainless steel or aluminum frameand can be manufactured to any size.

CleanableAmWash can be blow cleaned with compressed air, but only onceor twice during its natural lifetime. AmWash can also be cleanedwith a solution of water and detergent on a limited basis.

Aluminum frame

Filter media

Supporting grid

1) Offices, convention centers, meeting rooms, hospitals,shopping malls, sport centers, airports and other buildingswith HVAC systems.

2) Normal industrial area with central air ventilation system.3) Prefilter for central ventilation system for CleanRoom.

AmWash

Tel: 03-5569 2633 / Fax: 03-5569 3633

No. 9 (Lot 136), Jalan Juru Ukur U1/19,Hicom-Glenmarie Industrial Park, 40150Shah Alam, Selangor Darul Ehsan, Malaysia.www.aafasia.com

ISO-9001 Certified Firm

©2006 AAF MalaysiaAMWASH-01-MAL/OCT ‘06

AAF has a policy of continuous product researchand improvement and reserves the right to change

design and specifications without notice.

Product Information

Technical Specification

G3G3G3G3G4

610 x 610 x 51305 x 610 x 51610 x 610 x 102305 x 610 x 102610 x 610 x 51

6565555585

G4 305 x 610 x 51 85G4 610 x 610 x 102 80G4 305 x 610 x 102 80

90907575110110105105

3535303050504545

Class 70% 100% 120%Nominal SizeWxHxD (mm)

595 x 595 x 46290 x 595 x 46595 x 595 x 96290 x 595 x 96595 x 595 x 46290 x 595 x 46595 x 595 x 96290 x 595 x 96

Actual SizeWxHxD (mm)

34001700340017003400170034001700

Rated AirflowCapacity (m3/h)

Initial Resistance (Pa)via Rated Airflow

Maximum Operating Temperature : 93°C (200°F)Media : Synthetic fiberSupport grid : Wire gridFrame :Corner bracket :

Aluminum FrameRigid steel bracket

Airflow Resistance

Face Velocity, (m/s)

0255075

100

170

120

200

150

0 1 2 3 4 5

Initia

lRes

istan

ce(P

a)

Initial Resistance vs Face Velocity

AmAir® 300

B E T T E R A I R I S O U R B U S I N E S S®

High Quality Prefilters

● Excellent media perfor-mance in high humidity conditions

● High tensile strength media

● Environment-friendly materials

● Sturdy, reliable construction

High performance, environmentfriendly mediaWith the new AmAir 100 and 300series of prefilters AAF has risen tothe challenge of designing anenvironment-friendly product withthe necessary performance charac-teristics built-in. These filters featurea new 100% synthetic media packwhich provides excellent perfor-mance in conditions of high relativehumidity and moisture. When themedia becomes wet, resistance mayrise temporarily only to subside whenthe media starts to dry. The syntheticmedia displays great tensile strength,reducing the chance of damageduring handling and operation. Themedia is environment and user

friendly: it does not contain anyharsh resins or artificial colouring. Itcan therefore be readily disposed ofby landfill or incineration.

Sturdy, reliable constructionThe pleated media pack of bothrange of filters is housed within asturdy double walled, die cut box,beverage board frame. To ensure themedia pack does not rack ordeteriorate under difficult operatingconditions, it is bonded to the insideof its frame at all points of contactand retained in position by retainersat the air leaving and air enteringsides. On the air leaving side of themedia pack a wiremesh pleat supportgrid maintains equidistant spacing

between pleats, ensuring that dust iscollected evenly over the entiresurface of the media. Media usage ismaximized resulting in a moregradual rise in resistance, which inturn has a positive effect on energyconsumption and service life.

Applications Classified G4 in accordance with EN 779, AmAir 100 and 300 areideal for protecting more expensivesecondary air filters from prematuredust loading and replacement. Asprimary filters, they will also helpreduce HVAC maintenance costs bypreventing unnecessary dust build-upon coils, fans and duct work.

AmAir® 300

RA-2-509-IN-1-0798 © 1998 AAF International

AAF has a policy of continuous product research and improvement and reserves the right to change design and specifications without notice

Fire Classification:a) Both filters are Class 2 approved and listed according to UL Standard 900.b) PET media is classified M2 according to NF P92-503, 504 and 505.

Standard Dimensions Airflow Resistance

Nominal Size1,3)

(inches)W x H

12 x 24

16 x 20

16 x 25

20 x 20

20 x 25

24 x 18

24 x 20

24 x 24

141/2 x 263/4

Actual Size2,3)

(mm)W x H

290 x 595

392 x 494

392 x 621

494 x 494

494 x 621

595 x 445

595 x 494

595 x 595

355 x 665

Airflow at 2.5 m/s

(m3/h)

1700

1870

2380

2380

2975

2550

2850

3400

2260

Notes:

1) Width and height dimensions are interchangeable. Filters may be installed with the pleats in the vertical or horizontal position. The pleats are alwaysparallel to the longest cell side unless explicity specified otherwise.

2) Other sizes and air filters in 21 mm (1 inch nominal) depth are available upon request.

3) See Technical Data Table for filter depths.

Technical Data

Type 100 - 2” 100 - 4” 300 - 2” 300 - 4”

Actual Depth (mm) 48 95 48 95Rated Face Velocity (m/s) 1.5 - 2.5 1.5 - 3.2 1.5 - 2.5 1.5 - 3.2Average Arrestance1) (%) 90 - 95 90 - 95 90 - 95 90 - 95Efficiency1) (%) - - - -EN779 Classification G4 G4 G4 G4Rated Initial Resistance1) (Pa) 45 - 85 40 - 100 33 - 76 31 - 91Recomm. Final Resistance2) (Pa) 250 250 250 250Temperature Limits (°C) 90 90 90 90(continuous operation)

1) All data based on EN779.2) Recommended final resistance not to be exceeded.

1.0 1.5 2.0 2.5 3.0 3.200

20

60

100

40

120

140

160

80

1. AmAir 300 (48 mm), 2. AmAir 300 (95 mm)

1.

2.

Rated Velocity (m/s)

Init

ial R

esis

tanc

e (P

a)

AAF-International B.V.P.O. Box 79281008 AC AmsterdamThe NetherlandsTel.: + 31 20 549 44 11 Fax: + 31 20 644 43 98


AAF Agents:Copenhagen (DK), Bangalore (IND)Oslo (N), Lisbon (P), Johannesburg (RSA), Dalsjöfors (S), Malmö (S), Helsinki (SF)

DriPak® 2000

●● Filter classes F5 - F8 for applications requiring cleaner air

●● Mechanically strong with a high abrasional resistance

●● Operational reliability in high airflow and high dust loading conditions

●● Excellent performance in high moisture conditions

Mechanically Strong and Robust DriPak 2000 pocket filters are made ofhigh quality synthetic media. They arerenowned for their high performancecharacteristics in applications requiring ahigh dust holding capacity and higher aircleaning capacity. Built from strong,robust materials they display excellentabrasional resistance and perform well in100% relative humidity and in highairflow and heavy dust loadingconditions. Since their introduction theyhave proven a resounding success with thepharmaceutical, food processing andautomotive industries.

Microfine Synthetic FibresProvide Cleaner AirDriPak 2000 pocket media comprises aunique matrix of primary and secondary

synthetic fibres with a thin layer of highstrength spunbond scrim on the airleaving side to increase filter stability andprevent particle migration. This dualmedia design ensures a low initial pressuredrop, a high dust holding capacity and along filter service life.

Efficiency RangesDriPak 2000 is available in fourefficiencies. For easy identification, eachefficiency has its own colour coded mediascheme:

Final ResistanceDriPak 2000 filters are tested inaccordance with EN779. Therecommended final resistance is 450 Pa.

Temperature limitsDriPak 2000 synthetic filters are designedfor a continuous operating temperatureup to 70ºC. The filters should not bestored or transported in conditions wheretemperatures exceed 60ºC.

B E T T E R A I R I S O U R B U S I N E S S ®

Superfine Synthetic Fibres Provide Cleaner Air

Efficiency EN 779 Media Colour

90 - 95% F8 Yellow 80 - 85% F7 Red60 - 65% F6 Green

DriPak® 2000



0 1.00.5 1.5 2.0 2.5 3.00

50

25

75

100

125

200

225

150

175

DriPak 2000 90%

0 1.00.5 1.5 2.0 2.5 3.00

50

25

75

100

125

200

225

150

175

DriPak 2000 80%

0 1.00.5 1.5 2.0 2.5 3.00

30

60

120

90

DriPak 2000 60%

0 1.00.5 1.5 2.0 2.5 3.00

30

60

120

90

DriPak 2000 50%

Notes:1) Filters can be operated at 67% to 133% of rated face velocity.2) All performance data based on EN779 1993 standard (ASHRAE 52.1-1992 test method).3) The recommended final resistance is 450 Pa.4) The DriPak 2000 filter sizes fit into frame sizes 610 x 610, 305 x 610 and 508 x 610 mm.5) Filters are also available in other sizes and with 25 and 20 mm headers.

3.2

2.5

1.25

592x592x700287x592x700490x592x700592x592x635287x592x635490x592x635592x592x508287x592x508490x592x508

947846635

8.03.66.26.73.35.04.12.03.4

4250212535503400170028501700850

1400

160160160135135135909090

RatedFace

Velocity1)

(m/s)

ActualSize4/5)

(wxhxd)(mm)

Numberof

Pockets

GrossMediaArea(m2)

RatedAirflow

Capacity(m3/h)

RatedInitial2/3)

Resistance(Pa)

90-95% Average Efficiency2) - F 8



3.2

2.5

1.25


947846635

8.03.66.26.73.35.04.12.03.4

4250212535503400170028501700850

1400

105105105808080606060

3.2

2.5

592x592x700287x592x700490x592x700592x592x635287x592x635490x592x635

947846

8.03.66.26.73.35.0

425021253550340017002850

757575656565

2.5

2.5

2.5


635635635

5.02.54.34.12.03.42.51.22.0

340017002850340017002850340017002850

555555606060656565


Resistance Cur ves and Selection Char t Data

Init

ial R

esis

tanc

e (P

a)In

itia

l Res

ista

nce

(Pa)

Init

ial R

esis

tanc

e (P

a)In

itia

l Res

ista

nce

(Pa)

Face Velocity (m/s)

Face Velocity (m/s)

Face Velocity (m/s)

Face Velocity (m/s)

AAF-International B.V . P.O. Box 79281008 AC AmsterdamThe NetherlandsTel.: + 31 20 549 44 11 Fax: + 31 20 644 43 98

International AAF Offices: Vienna (A), Montreal (CDN), Dortmund (D),Vitoria (E), Paris (F), Cramlington (GB),Athens (GR), Milan (I), Riyadh (KSA), Mexico (Mex), Amsterdam (NL), Singapore,Istanbul (TR), Louisville, Ky (USA)

AAF Agents: Copenhagen (DK), Bangalore (IND)Oslo (N), Lisbon (P), Johannesburg (RSA), Dalsjöfors (S), Malmö (S), Helsinki (SF)

VariCel®

High and Medium EfficiencyExtended Surface Supported Pleat Air Filters

VariCel®

with Intersept®

IAQ Engineered Media Treatedwith Intersept® Antimicrobial

High Temp Series VariCel filters are designed for sys-tems operating from 350˚-900˚F. Constructed of alu-minized steel, High Temperature VariCel filters offer

rated efficiency with proven reliability over the life of the filter.See page 4 for models and temperature limits.

Type NH Series VariCel filters are designed for specialsizes and applications, including incineration andcompaction disposal systems. Manufactured of fire-

retardant, 3⁄4" thick, heavy wall particle board, Type NH VariCelfilters (U.L. Class 1) are operable at temperatures up to 200˚F.The filters are constructed without headers and cell sides areflush with front face dimensions.

VariCel® andVariCel® with Intersept®

Extended Surface Supported Pleat Filters

■ Available In Three Efficiencies 90-95% (MERV 14), 80-85% (MERV 13), 60-65% (MERV 11)

■ Available with Intersept® in 90-95% & 60-65% efficiency

■ U.L. Class 1

■ Ideal For Difficult Operating Conditions

- Variable air volume- Turbulent airflow- Repeated fan shutdown- High temperature operation- High humidity- Intermittent exposure to water

such as seacoast installations

VariCel filters with Intersept® antimicrobial are designed specifical-ly to improve Indoor Air Quality (IAQ). Air filters are designed totrap and concentrate particulate air contaminants including viablefungal and bacterial spores. The presence of Intersept® antimico-bial preservative in the filter media is intended to preserve the in-tegrity of the media throughout the useful life of the filter.Antimicrobial preservatives are not meant to increase the efficiencyof the filter, nor to kill microorganisms "on the fly" as they passthrough a filter. Intersept® is EPA registered and environmentallysafe.

Engineered For A Variety Of Applications

Designed To Improve Indoor Air Quality

Type SH Single Header VariCel filters are designed forsystems originally supplied by AAF International. A

unique 13⁄16" flanged header on the air entering side al-lows the filter to be easily inserted and latched into front andside access systems.

Type DH Double Header VariCel filters are designed toupgrade air cleaning performance and reliability. Two13⁄16" thick flanged headers make the filters compatible

with the holding frames and latching devices of various manu-facturers, including rear access systems.

XL Series VariCel filters, single header (XL-S) and double header(XL-D), contain up to 67% more media and offer more than twice theservice life of standard single and double header models.

Corrugated Aluminum Separatorswith Rolled Edges maintain uniformpleat spacing for optimum airflow. Theseparators are rolled to eliminatesharp edges, preventing media dam-age during shipping and personal in-jury during installation.

Crimped Rear Flanges (SH) are rolledover and riveted to add strength, elimi-nate sharp edges, and prevent bypassleakage.

Media Pack RestraintSteel brace on air leavingside adds support to themedia pack.

Media Pack Sealant — A layerof high efficiency media seals themedia pack into the cell sides.The media sealant prevents by-pass leakage and damage to themedia and separators duringshipping and handling. By allow-ing slight movement of the mediapack when the filter is jarred, thecushioning sealant helps preventtears and punctures to the media.

VariCel media is manufacturedwith two layers of glass fibers:coarser fibers on the air enteringside and finer fibers on the airleaving side.

Our dual density design allowsdirt particles to be collectedthroughout the entire depth ofthe filter utilizing the full clean-ing potential of the media. Maximum dust holding capacity ex-tends the life of the filter, minimizing operating costs.

The water resistant media can withstand intermittent exposure towater, making VariCel filters ideal for installations in humid areasor where the filters are exposed to moisture.

DUAL DENSITY MEDIA REDUCES OPERATING COSTS

FINER FIBERSAir leaving side

COARSE FIBERS Air entering side

AIRFLOW

VariCel's rigid constructionwith supported pleat mediapack maintains a compact,unitized structure even undertough operating conditions.Variable air velocity and re-peated fan shutdown do notcompromise performance.

Unitized Construction

Interlocked header and cellsides, along the entire lengthof each side, provide maxi-mum sealing. Competitive fil-ters are designed with loosefitting headers which allowgreater potential for bypassleakage.

BUILT RUGGED FOR DEPENDABLE PERFORMANCE

Pleats and Separators Bonded For Strength

During the pleating process,spots of glue are applied tobond each separator to the ad-jacent pleat. This solidifies themedia pack to minimize move-ment and prevent media dam-age. Burst strength isincreased to prevent the filterfrom blowing out under vari-able air volume conditions orunusually high resistance.

Galvanized steel headers andcell sides resist damage duringshipping and handling, andprevent corrosion over longservice life. (HT VariCel filtersare constructed of aluminizedsteel.)

Easy Installation

Rigid construction and mini-mum depth make VariCel fil-ters easy to install in all typesof systems.

VariCel Construction

Header

Cell Side

Header

Cell Side

Potential Leak Path

Typical Competitive Construction

10

20

30

50

40

60

70

80

100

90

.1 .2 .4 .6 .8 1 2 4 6 8 10

0

Efficiency by Particle Size*

PARTICLE SIZE (MICRONS)

EFFI

CIEN

CY (%

)

80-85%

VARICEL®/VARICEL® with Intersept®

OPERATING DATA

12" Deep Filters 6" Deep Filters

FILTER FACE VELOCITY (FPM)

INIT

IAL

RESI

STAN

CE (I

N. W

G)

Initial Resistance vs. Filter Face Velocity Operating Temperature Limits

VariCel Model Temperature Limit

Types SH, DH, XL 350˚F 177˚C

Type HT-500 500˚F 260˚C

Type HT-725 750˚F 385˚C

Type HT-900 900˚F 482˚C

Type NH 200˚F 93˚C

Underwriters Laboratories Inc. Classification: All VariCels are Class1.Testing was performed according to U.L. Standard 900 and CAN 4-S111.

OPTIONS

■ VariCel filters can be ordered with faceguardsmade of flattened, expanded, aluminizedsteel on one or both sides of the filter.

■ Factory installed gaskets are available on thefront or back of the header.

■ Vinyl Coated Separators are available for cor-rosive conditions.

■ 11⁄8" Single Header VariCels, designed for other manufacturers' equipment, are alsoavailable.

90-95%

90-95% XL/80-85%

60-65%

60-65% XL

90-95%

60-65%PREFILTERS CAN DOUBLE VARICEL LIFE

Using prefilters, such as AAF's PerfectPleat® pleated fil-ters or “5700” panel filters, will greatly extend the life ofVariCel filters. 12" deep filters are rated at 500 FPM filter face velocity.

6" deep filters are rated at 250 FPM filter face velocity.Recommended final resistance for all VariCel filters is 1.2" wg.

* Tested in accordance with ASHRAE standards 52.2-1999

®

AFP-1-158P DEC '03 MP 10M

For Additional Information On AAF Products,Call Customer Service

888.AAF.2003

©2003 AAF INTERNATIONAL

10300 ORMSBY PARK PL STE 600LOUISVILLE KY 40223-6169P O BOX 35690LOUISVILLE KY 40232-5690www.aafintl.com

90-95% (MERV 14)

60-65% (MERV 11)

80-85% (MERV 13)

VariCel® II


Low Depth Compact Filter For Commercial and Industrial HVAC Systems

● Low depth saves space

● Classification ranges F6 and F8

● Lightweight and easy-to-install

● Economic to transport

● High dust holding capacity

When installation space is limited and highquality air filtration is required, VariCel IIis the solution. This low depth, lightweightfilter is available in EN779 classificationranges F6 and F8. It displays low mediaresistance which means low energyconsumption. Due to its lightweight andlow depth it is economic to ship comparedto other heavier, bulkier types of filter.

VariCel II is suitable for use in front, rearand side access HVAC installations. The filter is also suitable for use in variableair volume systems and can withstandrepeated fan shut down and turbulentairflow. VariCel II has a high dust holdingcapacity and long service life. It can resistintermittent exposure to water andprovides excellent performance inconditions of high relative humidity.

0 1.0 2.0 3.0 4.00

50

75

25

100

125

175

225

200

150

60%

90%

2.5

Init

ial R

esis

tanc

e (P

a)

Face Velocity (m/s)

Initial Resistance vs Face Velocity

VariCel® II


Maximum operating temperature : 65 ˚CMedia : Dual density glass fibreFilter frame : Natural kraft pine and hardwood fibreDisposal : Municipal incinerator

Specification

Underwriter s’ Laboratories Inc. ListingVariCel II filters are Class 2 approved according to U.L. Standard 900.

1) Width and height dimensions are interchangeable. VariCel II filters can be installed horizontally or vertically.2) All performance data based on ASHRAE 52: 1.1992. Classification in accordance with EN779.

For maximum service life, VariCel II filters should always be operated with a prefilter. 3) Available for side access installations designed with a 18 mm or 22 mm or customized wide stationary track.

Technical Data


11.8010.319.858.188.838.186.505.852.97

34002975280523802550238018701700850

0.9440.8260.7800.6610.7080.6610.5190.4720.236

0.9440.8260.7800.6610.7080.6610.5190.4720.236

170170170170170170170170170

100100100100100100100100100


24x24x43)

20x25x420x24x43)

20x20x418x24x416x25x416x20x412x24x43)

12x12x4

24x24x43)

20x25x420x24x43)

20x20x418x24x416x25x416x20x412x24x43)

12x12x4

NominalSize1)

(wxhxd)(inches)

ActualSize1)

(wxhxd)(mm)

GrossMediaArea(m2)

Rated Air FlowCapacity2)

(m3/h) (m3/s)

RatedInitial2)

Resistance(Pa)

90% Average Efficiency - F 8

11.8010.319.858.188.838.186.505.852.97

34002975280523802550238018701700850


60% Average Efficiency - F 6




VariPak®


Multi-Purpose High Efficiency Compact Filter

● For use as prefilter or fine filter

● F6, F7 and F8 classified according to EN779

● Various media pack depthsand cell side combinationsavailable

● Low resistance = long service life

● Maximum operating temperature 70°C

ApplicationsVariPak is a multi-purpose air filter.It can be used as a prefilter to aHEPA filter operating at low facevelocity or as a fine filter incommercial HVAC systems at arecommended face velocity of 1.0 -1.5 m/s. The filter is available in theclassification ranges F6, F7 and F8 inaccordance with EN779.

The FilterDepending on the application,VariPak can be supplied in a widevariety of mini-pleat media packdepths and cell side configurations,including non-shedding MDF,die-cut, extruded aluminium andaluminized U-profile. The ultra fineglass fibre media pack features

thermoplastic separators whichmaintain uniform spacing betweenpleats and ensure low mediaresistance: low media resistancetranslates into low energyconsumption and long service life.The filter can be supplied with orwithout a one-piece gasket and incertain configurations with afaceguard.

0 0.20

150

250

200

100

50

0.6 0.80.4 1.0 1.2 1.4 1.6 1.8 2.0

VariPak 80%

Face Velocity m/sec.

Init

ial R

esis

tan

ce P

a

1

2

3

45

00

150

250

200

100

50

1.00.5 1.5 2.0

VariPak 90%


Init

ial R

esis

tan

ce P

a

1

23

45

0 0.50

60

100

80

90

40

20

50

70

30

10

1.0 1.5 2,0

VariPak 60%


Init

ial R

esis

tan

ce P

a

5

4

3

2

1

1: 25 mm 1.0 m/s 3: 48 mm 1.3 m/s 5: 96 mm 1.5 m/s2: 35 mm 1.0 m/s 4: 72 mm 1.5 m/s



VariPak®






How to Or derBelow a typical example of the Style Code for a standard VariPak filter using theComponent Definition Code System.

Item Component Component Code Definition

A Filter Type VP = VariPak

B Efficiency 6 = 60 - 65%9 = 80 - 85%10 = 90 -95%

C Cell sides 10 = die - cut, 11 = Aluminium extrusion72 = MDF89 = Aluminized steel99 = Aluminium extrusion90 = Aluminium extrusion with 20 mm flange for 3” media

D Pack Depth P = 25 mm R = 35 mm

K = 48 mm M = 96 mm

L = 72 mm

E Bond 9 = Polyurethane

2 = polyurethane flame retandant

0 = none on filters with die-cut cell sides

F Gasket type S = foamed polyurethane

P = No gasket

T = neoprene 6 mm

A = special

G Gasket location 0 = none 2 = air leaving side

1 = air entering side 3 = both sides

H Faceguard P = none A = Aluminium

E = epoxy coated steel U = Aluminized expanded metal

Z = specialI Faceguard location 0 = none 1 = Air leaving side

2 = Air entry side 3 = Both sides

Item A B C D E F G H I

ComponentDefinition VP 6 72 K 9 S 2 P 0

Standar d Sizes and Ratings

Size in mm Nominal without gasket airflow

H W D m3/h m3/s

96 mm pack

610 610 292 2000 0,55610 610 149 2000 0,55

72 mm pack

610 610 292 2000 0,55610 610 149 2000 0,55

48 mm pack

610 610 78 1740 0,48610 610 149 1740 0,48

35 mm pack

610 610 78 1340 0,37610 610 56 1340 0,37

25 mm pack

610 610 78 1340 0,37610 610 56 1340 0,37

x x

x xx x

x xx x

x xx x

x xx x

x xx x

Operating TemperatureVariPak air filters have a maximumoperating temperature of 70°C.

Disposal MDF and die-cut versions can bedisposed of by incineration. Productswith metal parts can be landfilled.

Recommended Final ResistanceThe recommended final resistance is450 Pa.

VariCel V

●● Lightweight and easy to install

●● Classification ranges F6, F7, F8 and F9

●● Excellent performance in difficult operating conditions

●● High air volume capacity:upto 5000 m3/h

●● High dust holding capacity

VariCel V are lightweight compact filtersdesigned for use in industrial and commercial HVAC installations. Available in the EN779 classification rangeF6 - F9, their rigid design and pleatedmedia pack with thermoplastic separatorsensure they deliver the desired air qualitywhen used in variable air volume systemsand subjected to repeated fan shutdown,high relative humidity and intermittentexposure to water.

Due to their 5000m3/h capacity, VariCel Voffer many cost saving benefits. In newinstallations fewer filters are needed tohandle the same volume of air comparedto filters of the same size with a lowercapacity. Fewer filters mean less installationspace for the filtration system. They canalso be used in existing systems to increasethe air capacity. VariCel V display lowmedia resistance and have a high dustholding capacity and long service life.


Lightweight Compact Filters For Commercial and Industrial HVAC Systems

Airflow Resistance VV6-series 200

175

150

125

100

75

50

25

0

95%

80%60%

0 1.0 2.0 3.0 4.0

90%

Init

ial

Res

ista

nce

(Pa

)

Face Velocity (m/s)

Varicel V



Specifications

Maximum operating temperature : 70 ˚C Media : Ultra fine glass fibres woven into matSeparators : ThermoplasticCell Sides : Recycled polystyrene

VV6- 6-24.24-124)

VV6- 6-20.24-124)

VV6- 6-12.24-124)

VV6- 9-24.24-12VV6- 9-20.24-12VV6- 9-12.24-12VV6-10-24.24-12VV6-10-20.24-12VV6-10-12.24-12VV6-11-24.24-12VV6-11-20.24-12VV6-11-12.24-12

592 x 592 x 292490 x 592 x 292287 x 592 x 292592 x 592 x 292490 x 592 x 292287 x 592 x 292592 x 592 x 292490 x 592 x 292287 x 592 x 292592 x 592 x 292490 x 592 x 292287 x 592 x 292

500041652500500041652500500041652500500041652500

1,391,150,691,391,150,691,391,150,691,391,150,69

425035402125425035402125425035402125425035402125

1,180,980,591,180,980,591,180,980,591,180,980,59

60-6560-6560-6580-8580-8580-8590-9590-9590-95

> 95> 95> 95

666777888999

600600600600600600600600600600600600

Type Size1)

(mm)HxWxD

Airflow

Maximum Nominal

m3/h m3/h m3/s

AverageEfficiency2)

%

EN779

Class2

InitialResistance at NominalAirflow (Pa)

FinalResistance3)

(Pa)m3/s

1) Width and height are interchangeable, pleats can be either vertical or horizontal without affecting performance.2) All performance data based on EN779.3) Recommended maximum value. Filters can be operated to a lower final resistance without materially effecting filter efficiency.4) Suffix "C" denotes cellulose media option.

110110110125125125145145145180180180

Technical Data




BioCel® I

●● Airflow range: 500 - 2000 m3/h

●● Classified H11 in accordance with EN1822

●● Benefits in existing and new installations

●● Lower energy costs

As a H11 EN1822 classified filter, BioCel I is the ideal choice for customerswishing to upgrade a non-HEPAinstallation to a HEPA installation. Withan airflow range of 500 - 2000 m3/h,BioCel I is ideally suited for variable airvolume and turbulent air flow systems.

BioCel I displays low media resistancewhich results in lower energy costs andlonger service life. The filter is designedfor use in clean areas in the pharma-ceutical, microelectronic, semi-conductorand healthcare industries in which high efficiency air filtration on fine particulatesis required. Temperature limit: 90˚C.


High Quality HEPA Filter For Use In Clean Zones

Resistance vs Face Velocity

0 1.871.51.13 2.250.37 0.750

150

250

200

100

50

149 mm 292 mm

Init

ial R

esis

tanc

e (P

a)

Face Velocity (m/s)

BioCel® I



Size Classification Low Airflow Initial High Airflow Initial Efficiency* Media Area (mm) EN1822 m3/h Resistance (Pa) m3/h Resistance (Pa) % @ 0.3 µm m2

610 x 610 x 292 H11 2000 165 3000 250 98 14.6610 x 610 x 149 H11 1000 165 1500 250 98 6.8

Technical Data

Technical Data Standard Execution

Dimensions : 610 x 610 x 292 mm, 610 x 610 x 149 mmMedia : Submicron glass fibres formed into high density paperCell sides : MDFSeparators : Corrugated aluminiumBond : Cold cured resinGasket : One piece gasketDisposal : LandfillTemperature limit : 90 ˚CStyle code : D72J9S2F

Note: Non-standard sizes and executions available upon request

* Efficiency % @ MPPS > 95%




BioPak®

●● H11 classified in accordance with EN1822

●● Recessed pack ensures easy handling

●● Non-shedding MDF cell sides

●● Low resistance ensureslow energy consumption

●● One-piece gasket provides leaktight seal

BioPak filters are classified H11 inaccordance with EN1822. They are theideal solution for upgrading an existingnon-HEPA HVAC installation into aHEPA installation. Their recessed mini-pleat media pack make BioPak filters easyto handle and install while high qualityMDF cell sides ensure a smooth non-shedding construction. The filter can beinstalled with the pleats in the vertical orhorizontal position.

BioPak filters offer low media resistancewhich results in low energy consumptionand long service life. A one-piece gasketaround the perimeter of the filter ensuresleaktight installation. The filters are madeof fully incinerable materials. Temperature limit: 70˚C.


High Quality HEPA Filters


0 0.300

150

250

200

100

50

149 mm

292 mm

0.45 0.60 0.75 0.90 1.05 1.20 1.37 1.50

Init

ial R

esis

tanc

e (P

a)

Face Velocity (m/s)

BioPak®




610 x 610 x 78 H11 600 90 1000 120 98 8.8610 x 610 x 149 H11 1000 120 1500 180 98 8.8610 x 610 x 292 H11 1000 90 2000 250 98 17.5

Technical Data

Technical Data Standar d Execution

Dimensions : 610 x 610 x 292 mm, 610 x 610 x 149 mm, 610 x 610 x 78 mm

Media : High density paper made from ultra-fine glass fibresCell sides : MDFSeparators : Thermoplastic ribbonBond : Cold cured resinGasket : One piece gasketDisposal : Incineration or landfillTemperature limit : 70 ˚CStyle code : D72M9S2F for 292 mm depth

D72K9S2F for 149 and 78 mm depth*



* Specify depths acquired




BioCel® V

●● H10 classification in accordance with EN1882

●● High air capacity: 3000 m3/h

●● Reduced energy costs and long service life

●● Lightweight and easy to install

BioCel V is designed for industrialHVAC installations in which HEPA quality air filtration is required. As a H10EN1882 classified air filter, BioCel V isideal for upgrading an existing non-HEPA HVAC installation to aHEPA installation. The filter’s mini-pleatmedia provides high quality filtration onfine particulate matter removing tiny dustparticles from the airstream efficiently.

Because of its 3000 m3/h air capacity,BioCel V is an ideal choice in newinstallations as fewer filters are needed tohandle the same volume of air comparedto HEPA filters of the same size with alower capacity. Fewer filters means lessinstallation space. The filter displays lowmedia resistance which results in lowenergy costs and long service life.Lightweight, BioCel V is easy to handleand install. Temperature limit: 70˚C.


High Quality Compact HEPA Filter for HVAC Systems


0 1.871.51.13 2.250.37 0.750

120

200

160

80

40

20

140

180

100

60

Init

ial R

esis

tanc

e (P

a)

Face Velocity (m/s)

BioCel® V




592 x 592 x 292 H10 2000 120 3000 200 95 20.4287 x 592 x 292 H10 1000 120 1500 250 95 9.0

Technical Data

Technical Data Standard Execution

Dimensions : 610 x 610 x 292 mm, 292 x 610 x 292 mm, Media : Ultra-fine glass fibres formed into a high density paperCell sides : PolystyreneSeparators : Thermoplastic ribbonDisposal : Landfill or incinerationTemperature limit : 70 ˚CStyle code : BV6-2424-12 resp. BV6-1224-12






AstroCel® I

●● Filter class H13 and H14 according to EN1822

●● Non-shedding construction

●● Improves quality of manufacturing processes and products

AstroCel I filters owe their excellent aircleaning efficiency to their advanceddesign. High quality MDF cell sidesensure a smooth, non-sheddingconstruction, while a rigid pleated mediapack with aluminium separators provideshigh efficiency air filtration on fineparticulates at the lowest possibleresistance. Galvanized steel and stainlesssteel cell sides are also available.AstroCel I filters are classified H13 andH14 in accordance with EN1822. Additional benefits include:● Factory tested to meet the most

stringent legal and industry requirements.

● Easy to install.


High Efficiency Particulate Air Filter (HEPA)


0 1.0 1.25 1.5 1.75 2.00.25 0.50 0.75 2.250

100

50

150

400

350

300

200

250

1234

1. 292 mm, H13 3. 149 mm, H132. 292 mm, H14 4. 149 mm, H14

Init

ial R

esis

tanc

e (P

a)

Face Velocity (m/s)

AstroCel®I



How to Or derBelow a typical example of how to order a standard AstroCel I filter using the Component Code Definition System.

An AstroCel I can be ordered using the following Component Code Definition System. Use the table to specify a product suitable to your application requirements.

Selection Table Standar d Sizes and Ratings

Item Component Component Code Definition*

A Media A = Waterproof glass fibreE = Waterproof glass fibre

B Cell Sides 24 = Galvanized steel26 = Stainless steel72 = MDF

C Separators J = AluminiumD Bond 5 = Silicone

9 = Cold cured resinE Gasket P = No gasket

S = 7 mm, half round profile, one piece foamedT = 6 mm, flat profileY = 6,5 mm, silicone rubber

F Gasket Location 0 = No gasket

2 = One face3 = Both faces

G Acceptance Level H = H13 99.95% @ MPPS, acc. to EN1822R = H14 99.995% @ MPPS, acc. to EN1822

Size in mm Nominal without gasket1) airflow

H W D m3/h m3/s

610 305 149 500 0.14610 610 149 1000 0.28610 762 149 1250 0.35610 305 292 1000 0.28610 610 292 2000 0.56610 762 292 2500 0.69

Item A B C D E F G

ComponentDefinition A 72 J 9 S 2 H

* Bold typeface: standard execution

1) The ‘H’ (Height) dimension also indicates the vertical position of the separators.AstroCel I filters should always be installed with the separators in the vertical position.

2) Other sizes available on request.

Notes:- Initial resistance at nominal airflow is:

250 Pa for H13 filters320 Pa for H14 filters.

- Recommended final resistance is 750 Pa.- Temperature limit: 90˚C.

(200˚C for A 24 J 5 Y 2 R,260˚C for A 26 J 5 Y 2 R.)

Efficienc yEfficiency Efficiency EN1822

@ 0.3 µm @ MPPS

99.997% H13 99.95%

99.999% H14 99.995%




AstroCel® I HC

●● High air volume filter: 3000 m3/h

●● Classified H12, H13 and H14 according to EN1822

●● Space saving design●● Saves energy in existing

installations

AstroCel I High Capacity are classifiedH12, H13 and H14 in accordance withEN1822 and are designed forapplications in which a high volume ofair has to be throughput. Because of theirhigh capacity, fewer filters are needed to handle the same volume of air comparedto other HEPA filters of the same size.AstroCel I HC filters owe their highcapacity to a unique separator designwhich allows denser packing of the filtermedia. The benefits to the customer arenumerous: ● In new installations, fewer filters mean

less costly installation space is necessary.

● In existing installations, low pressure drop means lower energy costs and longer service life.

● Standard individually tested.


High Quality HEPA Filter


0 1.0 1.25 1.5 1.75 2.00.25 0.50 0.75 2.250

100

50

150

400

350

300

200

250

1

2

1. 292 mm, H12 / H132. 292 mm, H14 Face Velocity (m/s)

Init

ial R

esis

tanc

e (P

a)

AstroCel® I HC



How to Or derBelow a typical example of how to order a standard AstroCel I HC filter using theComponent Code Definition System.

An AstroCel I HC can be ordered using the following Component Code Definition System. Use the table to specify a product suitable to your application requirements.

Selection Table Standar d Sizes and Ratings



B Cell Sides 24 = Galvanized steel26 = Stainless steel72 = MDF

C Separators H = Aluminium (HC pleat)D Bond 9 = Cold cured resinE Gasket P = No gasket

S = 7 mm, half round profile, one piece foamedT = 6 mm, flat profile

F Gasket Location 0 = No gasket2 = One face3 = Both faces

G Acceptance Level G = H12 99.5% @ MPPS acc. to EN1822**

H = H13 99.95% @ MPPS acc. to EN1822R = H14 99.995% @ MPPS acc. to EN1822


H W D m3/h m3/s

610 305 292 1500 0.42610 610 292 3000 0.83610 762 292 3750 1.04

Item A B C D E F G

ComponentDefinition A 72 H 9 S 2 H

* Bold typeface: standard execution** Non leaktested filter

1) The ‘H’ (Height) dimension also indicates the vertical position of the separators.AstroCel I HC filters should always be installed with the separators in the vertical position.


300 Pa for H12 / H13 filters350 Pa for H14 filters.

- Recommended final resistance 750 Pa.- Temperature limit: 90˚C.

(200˚C for A 24 H 5 Y 2 G),(260˚C for A 26 H 5 Y 2 G).


@ 0.3 µm @ MPPS

99.99% H12 99.5%

99.997% H13 99.95%

99.999% H14 99.995%




AstroPak®

●● Non-shedding construction

●● Leakfree construction●● Filter class H13 and H14

according to EN1822

AstroPak filters owe their excellent aircleaning efficiency to their advanceddesign. High quality MDF cell sidesensure a smooth, non-shedding construction, while a rigid mini-pleatmedia pack with thermoplastic separatorsprovides high efficiency particulate airfiltration at the lowest possible resistance. AstroPak filters are classified H13 andH14 in accordance with EN1822. Additional benefits include:● Fully incinerable. ● Recessed pack ensures easy handling.● Installation with pleats in vertical or

horizontal position.● Also available with metal cell sides.


High Efficiency Particulate Air Filter

0 1.0 1.25 1.5 1.750.25 0.50 0.750

100

50

150

400

350

300

200

250

Face Velocity (m/s)

Initi

al R

esis

tanc

e (

Pa)

2

1

1. 292 mm, H132. 78 and 149 mm, H13


AstroPak®



How to OrderBelow a typical example of how to order a standard AstroPak filter using the Component Code Definition System.

An AstroPak can be ordered using the following Component Code Definition System. Use the table to specify a product suitable to your application requirements.

Selection T able Standard Sizes and Ratings



B Cell Sides 24 = Galvanized steel**72 = MDF

C Media pack K = 2” deep - 48 mm.M = 4” deep - 96 mm

D Bond 9 = Cold cured resinE Gasket P = No gasket

S = 7 mm, half round profile, one piece foamedT = 6 mm, flat profile

F Gasket Location 0 = No gasket2 = One face3 = Both faces

G Acceptance Level H = H13 Min. 99.95% @ MPPS, acc. to EN1822R = H14 Min. 99.995% @ MPPS, acc. to EN1822

1) AstroPak filters can be installed with the separators in either the horizontal or vertical position.

2) Always minimal 20 mm difference between packdepth and filterdepth.


250 Pa for H13320 Pa for H14

- Temperature limit: 70˚C- Final resistance 500 - 750 Pa

Item A B C D E F G

ComponentDefinition A 72 K 9 S 2 H

* Bold typeface: standard execution** Cell sides with code number 24 is only available in a limited size range

Size in mm Nominal Pack without gasket1) airflow Depth

H W D m3/h m3/s mm

240 240 56 155 0.04 48610 305 56 500 0.14 48490 490 56 650 0.18 48610 610 56 1000 0.28 48305 305 78 250 0.07 48457 457 78 570 0.16 48305 610 78 500 0.14 48610 610 78 1000 0.28 48203 203 149 110 0.03 96305 305 149 250 0.07 96610 305 149 500 0.14 96457 457 149 570 0.16 96610 610 149 1000 0.28 96610 762 149 1250 0.35 96610 915 149 1500 0.42 96610 1220 149 2000 0.56 96610 1524 149 2500 0.69 96610 1830 149 3000 0.83 96762 762 149 1600 0.44 96762 915 149 1900 0.53 96762 1220 149 2500 0,69 96762 1524 149 3150 0.88 96762 1830 149 3800 1.06 96915 915 149 2250 0.63 96915 1220 149 3000 0.83 96915 1524 149 3800 1.06 96915 1830 149 4550 1.26 96305 305 292 500 0.14 96610 305 292 1000 0.28 96610 610 292 2000 0.56 96610 762 292 2500 0.69 96


@ 0.3 µm @ MPPS

99.997% H13 99.95%

99.999% H14 99.995%




AstroCel® III 3400 MDF

●● H12 and H13 in accordance with EN1822

●● 3400 m3/h air volume saves space

●● Low energy consumption●● Non-shedding

construction

AstroCel III is classified H12 or H13 inaccordance with EN1822. The filterdisplays excellent efficiency on fineparticulate matter and is designed for usein high air volume applications upto3400 m3/h. Due to its high capacity thefilter has several benefits: in newinstallations, fewer filters are required tohandle the same volume of air comparedto HEPA filters of the same size with alower capacity. As a result, lessinstallation space is required andinstallation time is significantly reduced.In existing installations, the filter's highmedia area ensures a low pressure dropwhich reduces energy costs. Otherbenefits include:● high quality MDF cell sides ensure a

smooth, non-shedding construction● easy installation


High Efficiency Particulate Air Filters


0 0.50 3.002.00 2.501.501.000

100

50

150

200

300

250

Initi

al R

esist

ance

(Pa

)

Face Velocity (m/s)

AstroCel®III 3400 MDF



An AstroCel III 3400 can be ordered using the following Component Code Definition System. Use the table to specify a product suitable to your application requirements.

How to OrderBelow a typical example of how to order a standard AstroCel III 3400 filter using the Component Code Definition System.

Selection T able Standard Sizes and Ratings


A Type of Filter A39 = AstroCel IIIB Media A = Waterproof glass fibreC Cell Sides** 72 = MDFD Separators C = ThermoplasticE Bond 9 = Polyurethane cold cured resinF Gasket P = No gasket

S = Polyurethane foam, half round profile, one pieceG Gasket Location 0 = No gasket

2 = One faceH Acceptance Level G = H12 Min. 99.5% @ MPPS acc. to EN1822 **

H = H13 Min. 99.5% @ MPPS acc. to EN1822I Faceguard Location 0 = No faceguardK Options Consult local sales office

Item A B C D E F G H I K

ComponentDefinition A39 A 72 C 9 S 2 G 0 -


H W D m3/h

610 305 292 1500610 610 292 3400

Notes:- Recommended final resistance 750 Pa.- Temperature limit 70°C.- Initial resistance at nominal airflow: 250 Pa.

* Bold typeface: standard execution** Non leaktested filter

For 4000 and NG execution consult specification sheets RA-3-129 en RA-3-124.


@ 0.3 µm @ MPPS

99.97% H12 99.5%

99.99% H13 99.95%




Non-Laminar Flow CleanroomsBasic Design and Operating Considerations


In a non-laminar cleanroom or, to use itsofficial name, non-unidirectional airflowcleanroom, air enters the room via filtersin the ceiling, and is exhausted via grillesin the wall close to the floor. The principle of this technique is basedon allowing air to flow along irregular,random paths in a turbulent way.

The success of this technique hinges onoptimizing the mixing of clean incoming

air with dust laden air in the room andthereby diluting the contamination levelin the cleanroom and lowering thenumber of particles per m3. The supplyof clean air is therefore the factor whichdetermines the success of this technique.In general, the greater the frequency withwhich the air is renewed the lower thecontamination build-up in the room andthe greater the rate with whichimpurities are diluted. On an hourly

basis, the number of air changes in aroom can vary between 10 and 50,depending on the type of work and theachievable Class of the room.

Although more unpredictable thanlaminar airflow cleanrooms, in manyapplications a non-laminar flow roomcan be a cost effective solution, especiallywhen local laminar flow work stationsare operational in the room.

Non-Laminar Flow Cleanrooms

AAF has a policy of continuous product research and improvement and reserves the right to change design andspecifications without notice.

CR-2-741-IN-0896 © 1996 AAF International

Achievable Class* 1,000 (M4.5) 10,000 (M5.5) 100,000 (M6.5) Avoid

Room size (m2) 100 300 500Room aspect ratio Narrow 3:1 2:1 Large square roomRoom height (m) min. 3 min. 2.75 min 2.25Area per occupant (m2) 20 10 5Equipment in room Minimum 30% Floor 50% Floor

Occupant activity Sedentary Occasional movement Constant activity Frivolous activities Traffic in/out per hour 1-2 2-6 More than 6Occupants properly attired Full gowns Smocks Smocks Street clothesParticle generation in room Miniature Slight ConsiderableThermal updrafts None Slight ConsiderableHousekeeping Meticulous Good Mediocre

Room Pressure (Pa) 10-15 10-15 5-10 NoneAir changes per hour 40-120 20-40 10-20Airlock Adequate Small None

Clean air inlets as % of ceiling area 20-50 10-20 5-10Clean air inlet locations Ceiling Ceiling Ceiling or high sidewall FloorTerminal velocity at clean air inlet (m/s) 0.15-0.45 0.15-0.45 0.15-0.45Return locations Low level or floor Low sidewall Sidewall Ceiling Wall return spacing Continuous on all Intermittent on long Non-uniform Single

4 walls wallsMax. horizontal distance to return (m) 3 6 9Return face velocity (m/s) 0.5-1 1-2.5 2.5

Prefilters - First Stage** 50% dust spot eff. 90% arrestance 80% arrestance Doors open

F5 G4 G4- Second Stage** 90% dust spot eff. 80-90% dust spot eff. 80-90% dust spot eff.

F8 F7 F7Prefilter maintenance and inspection Quarterly Semi-annual Annual No schedule

Final Filters** min.99.999% @ 0.3 µm min. 99.99% @ 0.3 µm min. 95% @ 0.3 µmH14 H13 H10

Routine particle count interval Monthly Monthly Quarterly

Basic design and operating considerations

* Class according to US Federal Standard 209E (between brackets in SI)** G and F classification in accordance with EN779. H classification in accordance with draft EN1822.


International AAF Offices:Vienna (A), Montreal (CDN), Dortmund (D),Vitoria (E), Paris (F), Cramlington (GB),Athens (GR), Milan (I), Riyadh (KSA),Amsterdam (NL), Singapore, Istanbul (TR), Louisville, Ky (USA)

AAF Ag ents : Copenhagen (DK), Oslo (N), Lisbon (P), Johannesburg (RSA),Dalsjöfors (S), Malmö (S), Helsinki (SF)

Laminar Flow Cleanrooms

The principle of laminar airflow or, tobe more precise, unidirectional airflowcleanrooms is based on air moving alongparallel streamlines at a uniform velocityof 0.3 to 0.45 m/s with as littleturbulence as possible between the placewhere the air enters and exits the room.The principle is based on expelling anydust in the airflow by the shortest route.

Basically, there are two types of laminarairflow cleanroom:a) Vertical downflowb) Horizontal crossflow

Vertical DownflowIn a vertical downflow cleanroom, airenters the room via filters in the ceilingsurface and is exhausted via a perforated

floor. This downward aiflow flushescontaminated air particles out of theroom via the floor, thus preventing abuild-up of contaminated particles.Particles generated at one work stationare therefore removed before they havethe chance to migrate. The air velocityin this type of cleanroom is usually 0.3to 0.45 m/s.

Horizontal CrossflowIn a horizontal crossflow cleanroom, thedirection of airflow is from left to rightor right to left across the room. Airenters the room via filters in one walland is exhausted and/or recirculated viaa bank of filters and perforated panels inthe opposite wall. The air velocity has tobe established at a sufficiently high level,

usually 0.45 m/s, to counter the effectsof upward thermal movement ofparticles. In work stations close to thehigh efficiency filter wall, Class 100 orbetter is possible.

Since the flow of particles in this type ofcleanroom is in the horizontal direction,the particle contamination generated atone work station can be transported towork stations further downstream of thefilters. This, however, is dependent onthe type of work or the process(es) beingcarried out in the cleanroom. Horizontalcrossflow is nevertheless a very practicaland cost effective system, particularly incleanrooms which have to be built inexisting spaces with limited ceilingheight.


Basic Design and Operating Considerations

Laminar Flow Cleanrooms

CR-2-740-IN-0896 © 1996 AAF International





Achievable Class* 1 and 10 (M1.5 and M2.5) 100 (M3.5)

Area per occupant 40 m2 30 m2

Occupants properly attired Full gowns Full gownsOccupant activity Minimum MinimumEquipment in room Minimum MinimumHousekeeping Meticulous Meticulous

Room pressurized 15 Pa 15 PaAir changes per hour 500-600 500Air lock Yes Yes

Clean air inlets as % of ceiling area 90-100% 90%Clean air inlet locations Ceiling Ceiling (wall)Terminal velocity at clean air inlet 0.3 - 0.45 m/s 0.3 - 0.45 m/sReturn air location Perforated floor Low level or floor

(opposite wall, 0.45 m/s)

Prefilters:- First stage** 30% dust spot efficiency 50% dust spot efficiency

F5 F5- Second stage** 95% @ 0.3 µm 90% dust spot efficiency

H10 F9Prefilter maintenance and inspection Monthly Monthly Final filters** Min. 99.9995% on 0.12 µm (for Class 10) Min. 99.999% @ 0.3 um

U15 H14Min. 99.99995% on 0.12 µm (for Class 1)U16

Routine particle count interval Daily Weekly

* Class according to US Federal Standard 209E (between brackets in SI)** G and F classification in accordance with EN779. H and U classification in accordance with draft EN1822.

Basic design and operating considerations

EN779


New European Standard for Coarse and Fine Filters

In 1993, the European Committeefor Standardization, TechnicalCommittee 195, Work Group 1(CEN/TC195-WG1) established anew standard for general ventilationfilters. With the introduction of thisstandard under document name EN779, member countries of theEuropean Union are obliged to issuetheir own national version of thisstandard within the existingframework of their own nationalstandards organizations. For example, BS EN 779 in the U.K.

and DIN EN 779 in Germany.EN 779 is based on existingdocuments such as EUROVENT4/5, and ASHRAE 52.1:1992, but isin fact more stringent than either ofthese standards. The standardincorporates a new system ofclassification for Coarse and Finefilters based on an average dust spotefficiency at a specified final pressuredrop.

Filters with an initial dust spotefficiency below 20% are classified as

Arrestance Filters (Coarse Filters) inthe range G1 - G4. Final pressuredrop for certification is specified at250 Pa maximum. Filters with aninitial dust spot efficiency above 20%are classified as Efficiency Filters(Fine Filters) in the range F5 - F9.The final pressure drop forcertification is set at 450 Pamaximum.

The table summarizes theclassification of the EN 779 forgeneral ventilation filters.

Filter Classification

G1G2G3G4F5F6F7F8F9

Initial Dust Spot Efficiency Eo

Average Arrestance Am (%)

Am < 6565 ≤ Am < 8080 ≤ Am < 90

90 ≤ Am-----

Eo < 20%

Average Efficiency Em (%)

----

40 ≤ Em < 6060 ≤ Em < 8080 ≤ Em < 9090 ≤ Em < 95

95 ≤ Em

Eo ≥ 20%

Note:For your information, the CEN/TC 195 Work Group 1 will continue to upgrade its standardization for general ventilation filters. To this end, EUROVENT has produced a particle count method under document name EUROVENT 4/9 which will form thebasis for a future new standard. WG 1 has also expressed its intention to work in closer liaison with ASHRAE on this subject.

CR-3-1167-IN-0896

AAF-International B.V., P.O. Box 7928, 1008 AC Amsterdam, The Netherlands Tel.: + 31 20 549 44 11, Fax: + 31 20 644 43 98

● On a flat sheet of media, the MPPS is determined for the given media velocity. This can be done with a laser spectrometer or a combination of electrostatic classifier and CNC (Condensed Nucleus Counter).

● The filter is assembled with the specified media grade and amount of media to comply with the defined media velocity.

● The filter is challenged with an aerosol and at the MPPS both the local and overall efficiency is determined with either a CNC or laser spectrometer.

● Leaks are specified as maximum allowable local penetration at the MPPS and must not exceed 5 x the overall penetration.

● The filter is classified according to the test results in the range H10 - H14 for HEPA,U15 - U17 for ULPA.

Penetration vs Particle Size

Particle Size (microns)

Pene

trat

ion

(%)

Face Velocity 5.00 cm/s(Resistance = 36.36 mm)

(MPPS = 0.134 µm)

MinimumEfficiency


(MPPS = 0.146 µm)


(MPPS = 0.159 µm)


(MPPS = 0.172 µm)


(MPPS = 0.189 µm)


(MPPS = 0.212 µm)

Filter

ClassificationH 10H 11H 12H 13H 14

U 15U 16U 17

Overall Value= > 85= > 95= > 99.5= > 99.95= > 99.995

= > 99.9995= > 99.99995= > 99.999995

Local Value---99.7599.975

99.997599.9997599.9999

Overall Penetration1550.50.050.005

0.00050.000050.000005

Local Penetration---0.250.025

0.00250.000250.0001

Efficiency (%) at the MPPS Penetration (%) at the MPPS

Notes:• Filters in the class H10, H11 and H12 do not require verification of local penetration.• Filters in the classification H13 and H14 may, as an alternative, be verified with the visual oil-smoke test (previously known as DIN 24.184),

which is accepted as equal or more searching than the specified local penetration.• U17 is an exception to the rule. In this case local penetration may not exceed 20 x the overall penetration value.

®

CR-2-489-IN-1-0398

B E T T E R A I R I S O U R B U S I N E S S

AAF-International B.V., P.O. Box 7928, 1008 AC Amsterdam, The Netherlands Tel.: + 31 20 549 44 11, Fax: + 31 20 644 43 98

© 1998 AAF International

EN1822

New European Standard for HEPA & ULPA Filters

Procedure

AstroFan FFU

B E T T E R A I R I S O U R B U S I N E S S®

Self-contained Filter Fan Unit

● Low energy consumption

● Low operating cost

● High total static pressureat full air flow

● Easy installation intocleanroom grids

ApplicationThe AAF AstroFan FFU is a self-contained ceiling filter fan unit foruse in turbulent mixing and laminarair flow cleanroom areas. The unit isdesigned for use with the AAF 50 and 55 mm T-Bar ceiling grid,the AstroDry HD ceiling grid andcompatible grids. When executedwith a knife edge, the unit can alsobe utilized in the AstroGel NDliquid seal ceiling grid. The unit islight weight and easy to install.

ConstructionThe AstroFan unit comprises a mildgalvanized steel housing with a highperformance, encapsulated, directdriven backward curved fan/motorcombination and a replaceableHEPA or ULPA AstroCel II filter.Large units and EC units are madefrom aluminium. Options includean epoxy coated white RAL 9010housing, which because it can bedecontaminated with disinfectant, issuitable for sterile applications.

Noise levelThe unit, with a clean filter at fullrated air flow has a single unit SPL of 52-56 dB(a) at 1m.

AstroFan FFU

CR-3-1168-IN-3-0101 © 2001 AAF International


AAF-International B.V.P.O. Box 79281008 AC AmsterdamThe NetherlandsTel.: + 31 20 549 44 11 Fax: + 31 20 644 43 98

International AAF Offices:Vienna (A), Montreal (CDN), Dortmund (D),Vitoria (E), Paris (F), Cramlington (GB),Athens (GR), Milan (I), Riyadh (KSA),Mexico (Mex), Amsterdam (NL), Singapore,Istanbul (TR), Louisville, Ky (USA)

AAF Agents:Copenhagen (DK), Bangalore (IND)Oslo (N), Lisbon (P), Johannesburg (RSA),Dalsjöfors (S), Malmö (S), Helsinki (SF)

Motors and controlsThe unit is available with traditionalhigh efficient AC motors, operatingwith single phase or 3 phase motors.Controls can be either with 5 stepspeed controller or stepless controller.This execution provides a simple andreliable economical solution formany applications.

Utilizing EC system (electricalcommutated) external rotor motorsgreatly reduces the powerconsumption of the unit, because ofreduced losses. Consequently thecooling requirement is also reduced.

Controls include the electroniccommutation unit, standard singleunit control, standard RFI supressionand PFC (power factor controller )and LON® bus interface. Two wiretwisted cable installation to the busmakes installation easy. Mains supplyis single phase 230-270V 50/60Hz.

AstroCel II HEPA and ULPA filtersThe unit is equipped with HEPAfilters in Class H14 to EN 1822 orULPA filters Class U15, U16 orU17. All filters are factory scanned tothe European Standard to ensure

leakfree operation. Selected lowpressure drop of the AstroCel IIprovides, in combination with thehigh total static pressure of the fan, afree static pressure of 70-100 Pa atfull rated airflow. This results inextended filter life or it can beutilized for external use on prefiltersor cooling coils.

Options• Room Side Change (RSC)• Cooling coil• Individual ceiling frames• 60 Hz operation

Performance Data

Size 66 612 912 1212

Airflow 520 / 0.14 1060 / 0.3 1590 / 0.44 2120 / 0.6(m3/h / m3/s?

Actual Dimensions 570 x 570 x 290 570 x 1170 x 290 870 x 1170 x 350 1170 x 1170 x 350L x W x H* (mm)

NominalMotor Data

230/1/50 0.26 kW - 1.2 A 0.29 kW - 1.3 A 0.52 kW - 2.2 A 0.68 kW - 3.0 A400/3/50 0.21 kW - 0.5 A 0.23 kW - 0.55 A 0.43 kW - 0.88 A 0.61 kW - 1.18 A

EC 230/1/50/60 0.17 kW - 0.75 A 0.22 kW - 0.98 A 0.34 kW - 1.5 A 0.34 kW - 1.5 A

Approx. weight (kg)Galv. steel 32 45 - -aluminium 25 35 65 72

Other sizes upon request.* Excluding filter.

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