5 ms·
N95 masks filter 95% of 0.3 micron particles.
by cypress66 4y ago
N95 masks filter 95% of 0.3 micron particles.
- varenc 4y agoFun fact: 0.3 micron particles are the most penetrating particles of any size, including smaller particles. It’s counterintuitive, but 0.1 micron particles will be filtered out more easily than 0.3 micron particles. [0] That’s in fact why all masks are rated this way, since it gives you the absolute worst case. It’s fair to say that an N95 would filter out at least 95% of all particles. [0] Wikipedia graph showing this: https://en.wikipedia.org/wiki/HEPA#/media/File:Filteration_Collection_Mechanisms-en.svg https://en.wikipedia.org/wiki/HEPA#/media/File:Filteration_C...
- cypress66 4y agoNice, I didn't know that.