Patent ID: 8100126

Claim:
A device for delivering a supply of gases to a user comprising: a hollow body including a gases inlet and gases delivery aperture, said gases inlet in use in fluid communication with said supply of gases, a resilient cushion adapted to engage around or adjacent to a periphery of said gases delivery aperture, and a flexible sheath adapted to engage around or adjacent to the periphery of said gases delivery aperture between said resilient cushion and a user, wherein said flexible sheath is configured to extend under a chin of the user during use, said resilient cushion and said flexible sheath each including at least a portion shaped to approximate the facial contour of a user, wherein said resilient cushion is adapted to deform substantially independently of said flexible sheath such that said flexible sheath may be deformed without deforming the resilient cushion, wherein said resilient cushion is a foam cushion, and wherein said hollow body has a flange at least partially around the interior of said hollow body, said flange and said interior forming a cavity adapted to house in use apart of said resilient cushion.