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Dust Masks,What's in a Rating N95,P95,N100 etc.

Respirator Rating Number Class.95 - Removes 95% of all particles that are at least 0.3 microns in diameter; 99 - Removes 99% of particles that are at least 0.3 microns in diameter; 100 - Removes 99.97% of all particles that are 0.3 microns in diameter or larger.HE or HEPA quality filter.Dust Masks,What's in a Rating N95,P95,N100 etc.Respirator Rating Number Class.95 - Removes 95% of all particles that are at least 0.3 microns in diameter; 99 - Removes 99% of particles that are at least 0.3 microns in diameter; 100 - Removes 99.97% of all particles that are 0.3 microns in diameter or larger.HE or HEPA quality filter.