The Retired Inventor of N95 Masks is Back at Work, Mostly for Free, to Fight Covid-19

The inventor of the complex filtration system now found in N95 respirators has come out of retirement to help find ways to sanitize and reuse N95 respirators, and not a moment too soon.

 

https://www.washingtonpost.com/lifestyle/2020/07/07/peter-tsai-n95-mask-covid/