A PAP system (10), comprising a PAP device to generate a supply of pressurized air; a patient interface (30) adapted to form a seal with the patient's face; air delivery tubing to interconnect the patient interface and the PAP device, wherein the air delivery tubing includes two inlet tubes (40) each adapted to pass along the patient's cheek region and above or below the ears, preferably wherein the two inlet tubes are each adapted to pass over the crown of the patient's head; and a cover that substantially encloses at least a portion of the PAP device and a portion of the air delivery tubing, wherein the cover (50) allows the PAP device to be carried by and/or supported on the patient's head.