ResMed Airfit F20 Mask and 2 Pack Cushion Combo side cover The Air11 DC/DC converter is

The Air11 DC/DC converter is only compatible with Air11 devices

This gives you the peace of mind and the freedom you have been looking for

Wisp Headgear

Simply remove the water chamber and insert the side plate cover

The DreamWear nasal cushion is designed to fit the innovative under-the-nose design of the DreamWear mask

ResMed Airfit F20 Mask and 2 Pack Cushion Combo side cover The Air11 DC/DC converter isResMed AirFit F20 mask with 2 additional replacement cushions. InfinitySeal cushion is deigned to stay sealed at any airflow pressure setting. QuiteAir vent reduces sound to only 21 decibels quieter than whisper soft Magnetic clips means two simple snaps and your mask is on or off. Plush headgear and soft, flexible frame provide extra comfort Quick release elbow allows you to get up at night and disconnect without removing the mask