ResMed Quattro Air Full Face Mask System with Headgear Size:Medium as this product is great

as this product is great for travel

including low battery

The tube extends from the front of the mask frame and connects to the cuff of the CPAP hose

Built-in surge protection Dimensions AC Power Supply: 8" Wide x 4" Long x 2" High

ResMed Quattro Air Full Face Mask System with Headgear Size:Medium as this product is greatResMed Quattro Air Full Face Mask System with Headgear is the next evolution in their popular Quattro mask line. The minimal design makes it 45% lighter than the very popular Mirage Quattro. With only four parts it is easy to maintain and clean. The advanced design of the Spring Air cushion aims to create a secure seal with more comfort at the bridge of the nose. Together, the lightweight frame and cushion mean a more comfortable therapy experience.