{"data":{"id":"us/21-cfr-868.5440","jurisdiction":"us","citation":"21 CFR 868.5440","heading":"Portable oxygen generator.","body":"(a) Identification. A portable oxygen generator is a device that is intended to release oxygen for respiratory therapy by means of either a chemical reaction or physical means (e.g., a molecular sieve).\n(b) Classification. Class II (performance standards).","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 868—ANESTHESIOLOGY DEVICES","Subpart F—Therapeutic Devices"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"2989356ce31b62210296cc7efcb8b4a05a5e81cb488adc432bc279b8a58e33d5","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-868.5430","next":"us/21-cfr-868.5450"},"notice":"GroundRules: Original legal text. Not legal advice."}