P99

Translingual

Etymology

English P99

Noun

P99

  1. 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.
  2. By extension, filtration standard of 99% of airborne particulates
  3. A filter implementing the P99 standard.

Coordinate terms
  • P1, P2, P3
  • FFP1, FFP2, FFP3

English

Etymology

From Initialism of oil-Proof with 99% filtration efficiency in NIOSH air filtration ratings.

Noun

P99 (countable and uncountable, plural P99s)

  1. P99; Ellipsis of NIOSH P99.
    1. (uncountable) P99 standard
    2. (countable) P99 filter

Coordinate terms
  • N99 (non-oil-proof filter standard)
  • R99 (oil-resistant filter standard)
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