Is an ideal mask for a wide range of patients. Its textured, dual-layered cushion design and adjustable forehead arm help deliver a comfortable fit and guard against mask leaks. The adjustable StabilitySelector and soft silicone forehead pad help patients find the right fit to reduce pressure points and mask leaks - without over tightening the headgear. The ball-and-socket headgear attachments make it easier to keep that perfect fit - they allow you to remove the mask from the headgear without loosening the headgear straps. The built-in "silent" exhalation port disperses the air for quiet operation.