{"data":{"id":"us/21-cfr-868.1975","jurisdiction":"us","citation":"21 CFR 868.1975","heading":"Water vapor analyzer.","body":"(a) Identification. A water vapor analyzer is a device intended to measure the concentration of water vapor in a patient's expired gases by using techniques such as mass spectrometry.\n(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 868.9.","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":"444b12766cfab9b4278515ec4792b205762031f3c5998a38e91c9781dacf6eba","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-868.1965","next":"us/21-cfr-868.1980"},"notice":"GroundRules: Original legal text. Not legal advice."}