{"data":{"id":"us/21-cfr-868.1860","jurisdiction":"us","citation":"21 CFR 868.1860","heading":"Peak-flow meter for spirometry.","body":"(a) Identification. A peak-flow meter for spirometry is a device used to measure a patient's maximum ventilatory flow rate.\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 B—Diagnostic 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":"f2f076f73c3054ae7656b157f4390a71569c5b7a1dd0cb7233e960294fcb240f","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-868.1850","next":"us/21-cfr-868.1870"},"notice":"GroundRules: Original legal text. Not legal advice."}