The GGM “Humidoflo” high flow therapy system is a heated humidifier with integrated flow source and heater wire circuit to deliver conditioned respiratory gas to a patient through nasal cannula interface. It has two configurations. One is a general type that is can provide high-flow humidification gas only, and the other type can also be used with oxygen to provide the fraction of inspired oxygen (FiO2) of more than 21% for patients. The main function of the Humidoflo is to provide the optimal physiological temperature of 37°C and 100% Relative Humidity with 44 mg/L of Absolute Humidity for patients.