The ResMed Mirage Quattro Full Face CPAP Mask provides the highest standards in comfort, quietness, and efficiency through the use of multiple innovative features. Proven to be the most popular full face CPAP mask on the market today, this is used by sleep labs and CPAP patients worldwide. The new MicroFit dial allows the patient to find the exact fit, preventing leaks and boosting comfort while relieving pressure on the bridge of the nose. Headgear clips allow you to conveniently remove the mask without interfering with settings eliminating the need to constantly adjust the mask. This CPAP mask is excellent for mouth breathers, and can be used with CPAP and BiPAP therapy at any pressure setting.