BTT · Class II · 21 CFR 868.5450

FDA Product Code BTT: Humidifier, Respiratory Gas, (direct Patient Interface)

Delivering humidified gas to mechanically ventilated patients prevents airway desiccation and protects mucosal integrity. FDA product code BTT covers direct patient interface respiratory gas humidifiers.

These devices add heat and moisture to inspired gases delivered through ventilator circuits or oxygen therapy systems, maintaining physiological humidity levels in the airways. They are essential in neonatal intensive care and long-term ventilator-dependent patients.

BTT devices are Class II medical devices, regulated under 21 CFR 868.5450 and reviewed by the FDA Anesthesiology panel.

Leading manufacturers include Fisher &Paykel Healthcare , Ltd., Medline Industries, LP and Medline Industries, Inc..

14
Total
14
Cleared
210d
Avg days
2021
Since

List of Humidifier, Respiratory Gas, (direct Patient Interface) devices cleared through 510(k)

14 devices
1–14 of 14
Cleared Dec 19, 2025
Optiflow Switch+ Filtered Nasal Interface with CO2 Sampling (AA042J)
K253479
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 66d
Cleared Jul 02, 2025
Hudson RCI® Comfort Flo Nasal Cannula Premature, Infant
K250312
Medline Industries, LP
Anesthesiology · 149d
Cleared Jun 25, 2025
Optiflow+ Nasal Cannula - Small (OPT942)
K251611
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 29d
Cleared Dec 19, 2024
Hudson RCI Comfort Flo® CubCannula™
K241778
Medline Industries, LP
Anesthesiology · 182d
Cleared Sep 27, 2024
Hudson RCI® Comfort Flo Nasal Cannula
K240163
Medline Industries, LP
Anesthesiology · 249d
Cleared Aug 08, 2024
F&P Optiflow Filtered Nasal Interface with Anesthesia Mask Compatibility (AA041J)
K234058
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 230d
Cleared Jun 13, 2024
F&P Optiflow Oxygen Kit (AA451J)
K233821
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 195d
Cleared Feb 07, 2024
F&P Optiflow+ Duet Nasal Cannula
K231956
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 219d
Cleared Oct 26, 2023
Hudson RCI® Disposable Humidifier with 4 PSI Pressure Relief Valve (3230), Hudson RCI® Disposable Humidifier with 6 PSI Pressure Relief Valve (3260)
K230559
Medline Industries, Inc.
Anesthesiology · 240d
Cleared Sep 05, 2023
F&P 820 Humidification System
K223684
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 271d
Cleared Apr 06, 2023
F&P Optiflow Junior 2/2+ Nasal Cannula Interface Range
K222197
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 258d
Cleared Apr 22, 2022
F&P 850 AirSpiral Adult NIV and NHF Circuit Kit
K212031
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 297d
Cleared Jan 28, 2022
Optiflow Oxygen Kit
K211096
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 290d
Cleared Mar 16, 2021
F&P Optiflow Nasal Oxygen Cannula with CO2 Sampling
K201723
Fisher &Paykel Healthcare , Ltd.
Anesthesiology · 266d

How to use this database

This page lists all FDA 510(k) submissions for Humidifier, Respiratory Gas, (direct Patient Interface) devices (product code BTT). Click any device to view full submission details, including the decision date, manufacturer information, predicate device, and a link to the official FDA record.

These devices fall under the Anesthesiology FDA review panel. Browse all Anesthesiology devices →