The Fisher & Paykel Aclaim™ 2 Nasal Mask has several unique features that ensure a quick, easy fit and an effective mask seal. The unique Glider™ Strap holds the mask gently but securely to the patients face, all the while allowing the patient to move freely. The diffuser mechanism reduces draft created by the bias flow, making the CPAP system much quieter. The Aclaim™ 2 Nasal Mask comes fully assembled with Breathable Headgear, that allows the patients head to breathe during the night. The Aclaim™ 2 is supplied with both sizes of Silicone Seal in each box.