The Quest Full Face CPAP Mask has been designed to provide a stable seal for a wide array of facial profiles including Bariatric. Incorporating a membrane inside the cushion improves the seal. In addition, the cushion surface features a series of flanges around the base and is constructed of a thin, soft silicone material. This interface provides clear view with no forehead support and single-molded mask frame and cushion that are made of easy contouring silicone rubber.