hvac

January 23, 2021 By e-Patient Dave 14 Comments

Ventilation for COVID-19 defense, part 2: CO₂ and new warnings

^{I’ve started compiling all my virus posts into a /covid19 page.}

Four months ago in Winter’s coming. Time to talk about ventilation for coronavirus defense, I talked about ventilation (fresh air) and about HEPA filters for cleaning indoor air. Here’s an update, focusing particularly on the latest bee in my bonnet: CO₂ detectors.