The ResMed Mirage Quattro full face is a full face CPAP mask that covers both the nose and mouth, making it suitable for patients who breathe through their mouth during sleep or have nasal congestion. Its cushion has a dual-wall design with an inner layer that gently adapts to facial contours and an outer layer that provides a secure seal. ResMed Mirage Quattro has a convenient quick-release clip, making it easy to put on and take off without needing constant adjustments. Pay by insurance? Please call (877) 799-0202