Comfort is inherent in the design. Patent pending design created with extensive patient input. Features solid mask shell with a comfortable and flexible silicone nasal cushion available in 3 sizes, standard, small and large. (Larger cushion is deeper and can accomodate more height and width). Whisper quiet operation. Uses the headgear as forehead support to reduce irritation and allow for greater distribution of pressure across a larger surface. Headgear attaches to forehead adjustment and clips to two points on the mask shell. Clips prevent the mask from unintentionally disconnecting while patient is sleeping. main swivel quietly rotates 360 degrees with acetal tubing that prevents squeeking when rotated. Includes mask shell, nasal cushion, 4 clips and headgear. 90 day limited warranty. Kit includes standard size mask, small and large cushion, 4 quick clips and headgear. Latex-free. 90 day warranty.