With ResMed, your patients won't need to walk the therapy journey alone. We're here to offer help and support along the way, so they can get the most out of their therapy. The ResMed Quattro Air is the lightest full face mask on the market today. It builds on the proven performance and reliability of the Mirage Quattro in a significantly lighter, more comfortable design that's also easy for patients to use. The patented dual wall cushion incorporates Spring Air technology to reduce pressure on the patient's nose while maintaining a high performance seal.