Below are HVAC Specific Recommendations from various industry bodies
- COVID-19 virus is primarily transmitted between people through respiratory droplets (defined as >5ug) and contact routes. See: https://www.who.int/news-room/commentaries/detail/modes-of-transmission-of-virus-causing-covid-19-implications-for-ipc-precaution-recommendations
- Studies show that >15% of transmission occurs in the home. See: https://www.contagionlive.com/news/spouses-adults-covid-19-infection-household-member and https://research.unc.edu/2020/04/24/household-deemed-most-common-place-for-covid-19-transmission/
- IAQ products can address >5ug airborne particles.
The EPA has a few suggestions for HVAC systems in homes:
- Run the system fan for longer times, or continuously (to filter the air in the home).
- Increasing ventilation to the home is also something that can help:
- Should you use an ozone generator? “No, do not use ozone in occupied spaces.”
- Will an air cleaner or air purifier help protect me and my family from COVID-19 in my home? It can help
- Ventilation and filtration provided by heating, ventilating, and air-conditioning systems can reduce the airborne concentration of SARS-CoV-2 and thus the risk of transmission through the air. Full ASHRAE guidelines are available to the public here: https://www.ashrae.org/technical-resources/filtration-disinfection
- From the Air Conditioning Contractors of America (ACCA)
Coronavirus and Other Contaminants: How Indoor Air Quality Can Affect Your Health
Call your HVAC vendor/professional for an indoor air quality assessment. You can use our Dealer Locator to quickly identify qualified HVAC professionals in your area: https://www.airadviceforhomes.com/find-an-iaq-expert/
Hear from the experts: SARS CoV 2 in Indoor Air: Principles and Scenarios