Upgrade Air Conditioning Filters to Minimize Virus Transmission
- Aug 13, 2020 6:42 pm GMT
As offices and businesses reopen after being shut down for the coronavirus pandemic, it’s incumbent upon owners and operators to upgrade heating, ventilating, and air conditioning (HVAC) systems to minimize virus transmission. There are certainly plenty of articles and whitepapers providing advice regarding how to do so. Most of these sources are based on lists and press releases prepared by the American Society of Heating, Air Conditioning, and Refrigerating Engineers (ASHRAE) Epidemic Task Force.
Two key techniques that stand out from this tsunami of advice are to: 1) upgrade filters to remove more of the tiny airborne particles that can carry viruses (known as bioaerosols), and 2) increase the amount of outdoor air that ventilation systems bring in and distribute throughout buildings. Both of these techniques can get the job done, but they’re also fraught with complications to implement well. Each must be carefully analyzed to avoid diminishing system performance or wasting money. Furthermore, these two techniques are mutually exclusive. Do one well, and the other is either unnecessary or wasteful.
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