The patent-pending ClearAir™ Technology creates a unidirectional flow of oxygen
through the nasal/oral area of the patient for inhalation. At the same time, negative pressure
or suction is applied to the port in the lower portion of the mask to scavenge the patient’s
exhalation. A tight mask seal to the face is not required to capture the patient exhalation, as
testing has demonstrated that a suction level setting of 30-50 mm Hg will effectively scavenge
the patient’s exhalation.