The Clean Air Crew site is an amazing resource for all things IAQ, masking, air filters, and CO2 monitoring!

Some of our favorite site resources:

Mask Fit Testing

Indoor Air Quality Fact Sheet

Buying Guide for Air Filters

School IAQ Resource

Expert Opinion on Air Filtration for reducing Covid-19

DIY box fan air filters – Corsi-Rosenthal box

Protecting Yourself from COVID-19 Aerosol Transmission

How to improve masking behavior

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