THE N95 is a DUST mask. It filters dust Particles to 0.003 micron..IIRC. The N100 does a little better, BUT they are NOT ANY GOOD for filtering a VIRUS. PLUS the style of mask they are LEAVES your eyes open ANYTHING. A full face mask is the only route that does better. BUT It has to have VIRAL filters in place. DUST filters are useless one them.ð¤ The VIRUS is 100 times or more smaller that the filters threads.
you recall incorrectly.
the 3m mask does better at filtering lower than the rating than that actual numeric rating.
it’s physics.
Their engineers have a document that explains the mechanics on their site.
It’s counterintuitive and lay people keep getting this wrong.
Notwithstanding that the virus attaches to a matter than makes it larger.