42 CFR 84.181

§ 84.181 Communication performance test—PAPR class PAPR100.

United States · 42 CFR — Public Health · Status: effective

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Citation: 42 CFR 84.181, § 84.181 Communication performance test—PAPR class PAPR100, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/201790
Permanent ID: ys:prov:201790@1
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(a) Powered air-purifying respirators must be designed to allow for proper communication while worn. (b) A Modified Rhyme Test 7 will be used to test the wearer's ability to communicate efficiently. 7 The Modified Rhyme Test is used in speech intelligibility experiments. See https://www.nist.gov/ctl/pscr/modified-rhyme-test-audio-library. (c) The communications requirement is met if the overall performance rating is greater than or equal to 70 percent.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.