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AIRBORNE VIRUS MITIGATION PROGRAM Airborne viruses, such as COVID-19’s SARS-CoV-2, can be recirculated non-deliberately throughout building HVAC (Heating, Ventilation and Air Conditioning) systems, creating a liability to building owners and operators. The AVMP follows the control system standards recommended by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) and the Center for Disease Control (CDC). These mesaures will be applied as your building equipment allows. More specifically, BrainBox AI will mitigate the potential spread through 2 specific strategies: DILUTION VENTILATION We can dilute the concentration of contaminants in the air by discharging all or a portion of exhausted air and supplying uncontaminated/fresh air using the controllable outside air damper. This process of dilution ventilation and removal of contaminated air can significantly improve air quality and reduce the potential re-circulation of airborne viruses throughout a building. TEMPERATURE AND HUMIDITY REGULATION We will ensure that temperature and humidity levels closely mimic the levels set out by CDC ventilation specifications for health care facilities, which typically call for a relative humidity % range of 30-60%, and a design temperature range of 72-78°F (22-26°C.) ACH TIME (MINS. REQUIRED FOR REMOVAL 99% EFFICIENCY) TIME (MINS. REQUIRED FOR REMOVAL 99.9% EFFICIENCY 2 138 207 4 69 104 6+ 46 69 8 35 52 10+ 28 41 12+ 23 34 15+ 18 28 20 14 21 50 6 8 Air change/hour (ACH) and time required for airborne-containment removal by efficiency Source: https://www.cdc.gov/infectioncontrol/guidelines/environmental/appendix/air.html In non-hospital buildings, the fresh air changes are generally 2 to 3 times per hour unlike hospitals which operate between 20 and 30 fresh air changes per hour. Preventive measures can maximize the number of air changes - while respecting the limits of existing HVAC equipment in the building. For this to be successful, the system should be able to easily increase air changes by a factor of 3 to 5. The goal is to reduce the lifespan of an airborne virus between 60 and 80% of its current lifespan. https://www.ashrae.org/file%20library/about/position%20documents/airborne-infectious-diseases.pdf https://www.who.int/sustainable-development/health-sector/health-risks/airborne-diseases/en/ https://apps.who.int/iris/bitstream/handle/10665/44167/9789241547857_eng.pdf;jsessionid=B0F4C76F6B486C920134535483A54873?sequence=1 https://www.medrxiv.org/content/10.1101/2020.03.09.20033217v1.full.pdf https://www.cdc.gov/mmwr/preview/mmwrhtml/rr5417a1.htm REFERENCES
