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A comment on Switching to an N95 mask gives a 75x boost in Covid protection. Parent comment
EPA says that just HEPA filter is enough to catch covid, so it seems that there are less chance to upsell filter only. Selling more appliances would be good. https://www.epa.gov/coronavirus/air-cleaners-hvac-filters-an...
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EPA says that just HEPA filter is enough to catch covid, so it seems that there are less chance to upsell filter only. Selling more appliances would be good. https://www.epa.gov/coronavirus/air-cleaners-hvac-filters-an...