N100

noun

N100 standard

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Meanings

nounN100 (countable and uncountable, plural N100s)

plural N100s

  1. N100; Ellipsis of NIOSH N100.
    1. uncountableN100 standard
    2. countableN100 filter

Origin

From Initialism of Not resistant to oil particles with 100% filtration efficiency in NIOSH air filtration ratings.

Full word history & related roots →
Cite this entry
APA

N100. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/N100

MLA

“N100.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/N100. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “N100,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/N100.

Source: N100 on Wiktionary, CC BY-SA 4.0.