{"data":{"id":"us/42-cfr-84.139","jurisdiction":"us","citation":"42 CFR 84.139","heading":"Head and neck protection; supplied-air respirators; minimum requirements.","body":"Type AE, BE, and CE supplied-air respirators shall be designed and constructed to provide protection against impact and abrasion from rebounding abrasive materials to the wearer's head and neck.","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 J—Supplied-Air 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":"8b0f52bcad709f3372ee19587e238532403c50a314197f17b566df07ac7ba8b7","source_id":"us-cfr","stale":true,"prev":"us/42-cfr-84.138","next":"us/42-cfr-84.140"},"notice":"GroundRules: Original legal text. Not legal advice."}