{"data":{"id":"us/42-cfr-84.200","jurisdiction":"us","citation":"42 CFR 84.200","heading":"Inhalation and exhalation valves; minimum requirements.","body":"(a) Inhalation and exhalation valves shall be provided where necessary and protected against distortion.\n(b) Inhalation valves shall be designed and constructed to prevent excessive exhaled air from entering cartridges or adversely affecting canisters.\n(c) Exhalation valves shall be—\n(1) Protected against damage and external influence; and\n(2) Designed and constructed to prevent inward leakage of contaminated air.","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 L—Chemical Cartridge 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":"d9968de27522cb64b9f6729a295e4e4537d6eb5afe918d2ebfe8be1ac70567f5","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.199","next":"us/42-cfr-84.201"},"notice":"GroundRules: Original legal text. Not legal advice."}