Water Chamber for ResMed AirSense10 & AirCurve10Keep your humidity consistent and comfortable with the original ResMed HumidAir water chamber for AirSense 10 (CPAP Elite AutoSet), AirCurve 10, and AirStart 10 devices. Not compatible with S9 (H5i) or AirSense 11. This model is specifically for Air10 series devices with the builtin HumidAir humidifier. Why replace? Even with good cleaning, hardwater minerals and heat gradually cloud, pit, or warp the tub. A fresh chamber helps maintain stable