Efficacy and Physiology of Nasal High Flow Therapy

AIRVO 2 device therapy is either a humidifier with integrated flow generator that delivers warmed and humidified respiratory gases to spontaneously breathing patients through a variety of patient interfaces. Flow rates up to 60 L/min are available to the user, depending on the patient interface and mode of operation.In this study, flow rates of 20 L/min and 35 L/min will be compared.

Oxygen will individually be added to NHF in order to achieve stable oxygen saturation by pulse oximetry (SpO2) values of 88% to 92%.