ResMed AirSense 11 HumidAir 11 Water Chamber Replacement

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Note: This product is for use with the Resmed AirSense 11.

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Introducing the ResMed HumidAir™ 11 Water Chamber for the ResMed AirSense™ 11 CPAP machine. This water chamber provides you with a heated humidifier option for your CPAP device and is compatible and is designed specifically for the brand new line of AirSense™ 11 CPAP machines. 

The AirSense™ 11 Water Chamber is a removable water tub that’s easy to fill and clean for active heated humidification. This replacement product part is specially designed for use with the AirSense™ 11 from ResMed.

The ResMed HumidAir 11 CPAP heated humidifier is capable of enhancing sleep apnea therapy and helps by preventing some common side effects such as dry mouth and CPAP mask and tube rainout. This water tub is also compatible with ResMed's new ClimateLineAir™ 11 heated hose and this humidifier can be seen as a comfort feature that will help you get the best experience possible from your sleep apnea therapy. 

Exclusively designed for and integrated with AirSense 11, this water tub chamber is designed to hold a capacity of 380 ml of water. It can be opened for cleaning and filling but we highly recommend removing the tub from the AirSense 11 when refilling with distilled water.

Regarding general maintenance and cleaning of the AirSense™ 11 water chamber, the standard version is NOT dishwasher safe and should be cleaned by hand weekly with warm water and a mild detergent. Once clean it should be allowed to dry out completely and out of direct sunlight before reinstalling it to your sleep therapy device. The cleanable variant of this tub is dishwasher safe.

Please note: The ResMed HumidAir 11 Water Chamber is NOT compatible with the ResMed AirSense 10, AirCurve 10 or S9 model CPAP devices. It is designed to be used only with the ResMed AirSense 11.

Everything you need to know about the ResMed AirSense 11 HumidAir 11 Water Chamber Replacement.

Better Sleep Apnea Therapy

Humidification helps to enhance sleep apnea therapy by preventing some common side effects such as dry mouth and CPAP rainout, providing you with the best possible experience


This water chamber is made with injection-molded plastic, stainless steel, and a silicone seal, adding extended longevity to the part. We do recommend considering replacing the tub every 3-6 months

Easy to Clean

The cleanable version of the HumidAir™ 11 Water Chamber is dishwasher friendly. However, the standard version is also really easy to clean by using mild detergents, lukewarm water and allowing the part to air dry

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Sleep Therapy Simplified

Answers to your common questions about ResMed AirSense 11 HumidAir 11 Water Chamber Replacement and tips for getting better sleep every night.


What exactly is ResMed HumidAir™?


Can you run the AirSense™ 11 without water?


How can I clean the HumidAir™ 11 Tub?


Can I use AirSense™ 11 without the humidifier?


Can I use tap water in my AirSense™ 11 CPAP machine?