COVID-19 Resources

[Updates: Dec 23, 2021; Jan 31, 2022 ; Feb 16, 2022 ; March 17; 2022; April 28, 2022] This page is for general information on tools to help us fight COVID. I'll focus primarily on respirators and air quality here and less on vaccines: Masks and Respirators section Air Quality Measurement (CO2, etc.) section HEPA […]