Incorporating the FlexiFit Technology with auto-contouring properties, the Aclaim2 Nasal Mask offers an over-head mask solution with a unique Glider Strap mechanism for maximum comfort and stability. The Aclaim Nasal Mask offers an over-the-nose mask solution with a fixed overhead tube that fits better, feels lighter and is easier to use. When you study the foam cushion of the FlexiFit series you can immediately see why these nasal masks are so user-friendly. The Aclaim2 Nasal Mask comes as an Out-of-Box solution fully assembled and ready for use.