[throwaway81523]

I very much want to stay away from sharing indoor space with other humans for the foreseeable future. All of them (including me) have to be presumed virus spreaders. If you have to be in an office, ventilation is important because the virus is certainly airborne despite CDC and others running away from this (acknowledging it would complicate a lot of protocols I guess).

You can get a fairly affordable CO2 meter (like $50, don't get the $10 kind that measures VOC as a proxy for CO2) and use that to indicate how much of the air you inhale was previously exhaled by someone else. School classrooms are showing 2000+ ppm of CO2. Ignoring the controversial topic of whether so much CO2 impairs cognition, that really does seem to be enough re-breathed air to spread infection.

I could handle going into an office at times of day when no one else was around, but that probably defeats the purpose.

https://www.nytimes.com/2021/05/07/opinion/coronavirus-airbo...