From Resmed, helps minimize mouth opening or mouth breathing by CPAP mask users during sleep.
Neoprene with easily adjustable velcro strapping to support under the chin.
Comfortable, adjustable, washable, long lasting. Fits easily under or over most CPAP mask headgear.
For best results keep the top strap as far forward as you can towards the front of the head, to support the chin vertically rather than diagonally backwards.