CFR › Title 21 › Part 868 › §868.260021 CFR §868.2600Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. An airway pressure monitor is a device used to measure the pressure in a patient's upper airway. The device may include a pressure gauge and an alarm.(b)Classification. Class II (performance standards).