{"data":{"id":"us/42-cfr-84.177","jurisdiction":"us","citation":"42 CFR 84.177","heading":"Total noise level test—PAPR classes HE and PAPR100.","body":"Noise levels generated by any powered air-purifying respirators that cover the ears (i.e., hood or helmet) will be measured at the entrance to each ear at maximum airflow obtainable and must not exceed 80 dBA.","path":["Title 42—Public Health","CHAPTER I—PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER G—OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES","PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES","Subpart K—Air-Purifying Particulate Respirators"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-42.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:11Z","sha256":"4556a718c7c4e0861380bd2c3726750d294365db64dc4932814cd97ab9ea1e30","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.176","next":"us/42-cfr-84.178"},"notice":"GroundRules: Original legal text. Not legal advice."}