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Respirator certification in the US

The process of certifying respirators in the United States, including the role of NIOSH and the use of the NIOSH Certified Equipment List.

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Feb 1, 2026
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What certifications (NIOSH/EN) indicate a respirator is suitable for riot control agents and how do civilians verify them?

are those certified to block particulate and gaseous riot agents (CS, CN, OC) under recognized standards — , approvals under 42 CFR 84 and the NIOSH Certified Equipment List (CEL) identify approved re...