Abstract: A PAP system adapted for treatment of respiratory disease or sleep disordered breathing includes headgear adapted to engage a patient's head, a patient interface adapted to be secured to and sealed against a portion of a patient's face, in use, by the headgear, a flow generator adapted to be connected to the patient interface, and wherein the flow generator is adapted to be secured by a portion of the headgear to the patient's head, and an outlet tube to interconnect the flow generator and the patient interface. The patient interface includes a frame and a sealing arrangement supported by the frame. The sealing arrangement includes a seal portion, a body portion, and an inlet tube in communication with the outlet tube. The frame and the outlet tube are constructed of a relatively rigid material.

Abstract: A mask system (10) includes a frame (20) defining a breathing chamber, a cushion (40) provided to the frame and adapted to form a seal with the patient's face, and a shroud (50) provided to the frame and adapted to attach headgear. The shroud includes a retaining mechanism structured to connect the shroud to the frame. The retaining mechanism includes both a taper lock arrangement and a retaining clip arrangement.