CFR › Title 21 › Part 868 › §868.575021 CFR §868.5750Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. An inflatable tracheal tube cuff is a device used to provide an airtight seal between a tracheal tube and a patient's trachea.(b)Classification. Class II (performance standards).