The Philips Respironics Premium Chinstrap helps prevent air from leaking out of the mouth by holding the chin from dropping open.
The Philips Respironics Premium Chin Strap Features:
Vertical Design that promotes a vertical angle of force on the chin (as opposed to horizontal) in order to reduce the potential of inducing sleep-related events
Chin cup is part of the soft strap to provide comfortable support without placing unnecessary tension around the chin
Adjustable Support Strap that attaches to a split section on one side of the chin strap and wraps around the back of the head for the ultimate in stability and adjustability.