R95

noun

R95 standard

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Meanings

nounR95 (countable and uncountable, plural R95s)

plural R95s

  1. R95; Ellipsis of NIOSH R95.
    1. uncountableR95 standard
    2. countableR95 filter

Origin

From Initialism of Resistant to oil particles with 95% filtration efficiency in NIOSH air filtration ratings.

Full word history & related roots →
Cite this entry
APA

R95. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/R95

MLA

“R95.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/R95. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “R95,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/R95.

Source: R95 on Wiktionary, CC BY-SA 4.0.