| Entry: P100 Mask originally posted by iq72EfX [last edit 2/6/2012 3:51 PM by Opheliaism - edited 3 times] |
P100 is a NIOSH rating for respirator filters. P100 filters have 99.97% efficiency rating, and the "P" in "P100" is for "Oil Proof", regarding resistance to filter efficiency degradation. P100 filters must be color-coded magenta. These filters should be replaced whenever they are damaged, soiled, or causing noticeably increased breathing resistance. Two P100 filters: Another example:  |
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