VIDEO-Jonathan on Twitter: ""An N-95 mask filters out particulate matter larger than .3 microns. So the question then is how big is a COVID particle. A COVID particle is about .1 micron....this idea of people doing anything particularly useful w...a mask

Jonathan : "An N-95 mask filters out particulate matter larger than .3 microns. So the question then is how big is a COVID par… https://t.co/4yJikxuCll

Fri Jun 19 10:25:50 +0000 2020