Understanding what P100 Means for Respirator Filters - PK
https://pksafety.com/blog/understanding-what-p100-means-for-respirator-filters/
WEBFeb 17, 2021 · The number represents the percentage of particles that are filtered out. When it comes to personal respiratory protection, P100 is the highest you can get. As long as the mask fits properly, a P100 filter will block 99.9% of particles .3 microns or larger, making it virtually impenetrable.
DA: 59 PA: 60 MOZ Rank: 45