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., Travenol Laboratories, S.A. and Respironics, Inc..