The ResMed AirSense 11 HumidAir Cleanable is a water tank designed for use with the ResMed AirSense 11 CPAP machine. Can be used with the AirSense 11 CPAP, Elite and AutoSet models. The ResMed AirSense 11 HumidAir Cleanable is located on the top shelf, making it easy to clean. Maximum capacity is 380 ml.