“Since the beginning of the pandemic we have learned that the virus can dwell in ambient air, suspended in aerosols exhaled by infected people. Understanding this mode of transmission has affected recommendations made by knowledgeable bodies to building operators. “
Since many people have worked from home and many are returning to the workplace, new protocols may be in place for that return. Since air handlers are very good at moving air throughout a facility, we have to look at the recommendations of what we can do to protect people in these facilities. “By following these ASHRAE approaches for HVAC systems, facilities can best fight the continuing pandemic.”
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https://www.facilitiesnet.com/hvac/article/4-HVAC-Strategies-to-Still-Protect-Against-COVID-19–19461