P99
Translingual
Etymology
English P99
Noun
P99
- A filtration type that efficiently filters out 99% of airborne particulates of 0.3 microns (“μm”) (and all larger particles) and is strongly resistant to oils.
- By extension, filtration standard of 99% of airborne particulates
- A filter implementing the P99 standard.
Coordinate terms
- P1, P2, P3
- FFP1, FFP2, FFP3
Related terms
- R95, P95, N95
- R99, N99
- R100, P100, N100
English
Etymology
From Initialism of oil-Proof with 99% filtration efficiency in NIOSH air filtration ratings.
Noun
P99 (countable and uncountable, plural P99s)
- P99; Ellipsis of NIOSH P99.
- (uncountable) P99 standard
- (countable) P99 filter
Coordinate terms
- R100, P100, N100 (99.97% filtration)
Related terms
- N99 (non-oil-proof filter standard)
- R99 (oil-resistant filter standard)