167 Liberals are trying to bring back masks, STAY VIGILANT! (twitter.com) posted 1 year ago by axrevolutionai 1 year ago by axrevolutionai +167 / -0 58 comments share 58 comments share save hide report block hide replies
0.1 microns or less.
A P100 respirator only blocks a minimum size of around 0.2 microns.
An N95 blocks a minimum of around 5 microns.