{"data":{"id":"us/42-cfr-84.204","jurisdiction":"us","citation":"42 CFR 84.204","heading":"Exhalation valve leakage test; minimum requirements.","body":"(a) Dry exhalation valves and valve seats will be subjected to a suction of 25 mm. water-column height while in a normal operating position.\n(b) Leakage between the valve and valve seat shall not exceed 30 milliliters per minute.","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":"7d5df6c74f5496f3fb6e8e5e60f1a8ce19beeb6260082cac5f64d640bb56e5b2","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.203","next":"us/42-cfr-84.205"},"notice":"GroundRules: Original legal text. Not legal advice."}