Comfort, quiet and effective with improved forehead support and flexible pads. Dual wall cushion optimizes seal and minimizes pressure on the bridge of the patient's nose. Quick-release clips, flexible 1-piece forehead pads, Breath-O-Prene™ technology draws moisture away from the skin. #16548-Standard   #16549-Lg    #16550-Shallow   #16577-Shallow wide.  UNSPSC#42272213