eCFR.io
Daily eCFR

§ 868.1800 Rhinoanemometer.

21 CFR 868.1800

Citation21 CFR 868.1800
CorpusDaily eCFR
Displayed edition2026-04-27
Last updated2026-04-27

§ 868.1800 Rhinoanemometer.

(a) Identification. A rhinoanemometer is a device used to quantify the amount of nasal congestion by measuring the airflow through, and differential pressure across, a patient's nasal passages.

(b) Classification. Class II (performance standards).