My #university #AcademicEmployment doesn't provide #CO2Level indicators in #SeminarRooms, & only "recommends" #masks so 3/4 of my colleagues run around maskless in un-aired spaces. I see 96 students/wk. 🤐

Carted a small HEPA filter to my seminars & wore a FFP2 mask. Felt like a freak but the Covid I got (my 2nd time) was from my SO's train commute.

Now have invested in a far-UV 222nm desk lamp which I will employ additionally.

I'll be damned if Covid gets me a third time. #KeepFightingCovid

What good is a #SmartHome? #Ventilation is important to prevent #CovidInfections. As I was exposed a little under two weeks ago, figuring out how #WellVentilated my house is has been on my mind.
#CO2Level is a useful proxy for ventilation (NOT for risk of infection!). I’ve been occasionally ventilating the house by opening windows and cranking fans for an hour.
Smart home says 15 minutes is probably enough. Remember that environmental CO2 levels are in the low 400s worldwide.