🛡️ For Machines : Every eligible product you purchase is backed by a 2-year manufacturer warranty, covering manufacturing defects and workmanship under normal use.

⚠️ For Masks & Accessories : CPAP
masks and mask components are covered by a 6-month warranty against
manufacturing defects only.

*Not covered: Normal wear and tear, misuse, improper cleaning, accidental
damage, or unauthorised modifications.

📖 Read More — To view our detailed Warranty policy

🚚 Free Next-Day UK Delivery : Orders placed before 3:00 PM GMT, Monday to Friday, are dispatched the same day using our next-day delivery service.

📖 Read More — To view our detailed Shipping policy

↩️ 30-Day Easy Returns : We offer a 30-day return policy on eligible items that are unused, unopened, and in their original sealed packaging. For hygiene and safety reasons, opened or used CPAP Machines, masks, cushions, and other personal-use accessories cannot be returned or replaced.

📖 Read More — To view our detailed Returns & Exchange policy

Q. What is the ResMed HumidAir™ Water Chamber?
A. The ResMed HumidAir™ Water Chamber is a genuine replacement water tub designed exclusively for the ResMed AirSense™ 11 CPAP machine. It works with the integrated HumidAir™ humidification system to provide consistent moisture during therapy.

Q. Which CPAP machines is this water chamber compatible with?
A. This water chamber is compatible only with the ResMed AirSense™ 11 series, including the AirSense™ 11 AutoSet and AirSense™ 11 Elite.

Q. Is this water chamber compatible with the AirSense™ 10?
A. No. It is specifically designed for the AirSense™ 11 and is not compatible with the AirSense™ 10, AirCurve™ series, or other ResMed CPAP devices.

Q. Is this a genuine ResMed replacement part?
A. Yes. This is an original genuine ResMed HumidAir™ Water Chamber manufactured to ResMed's quality standards.

Q. How often should I replace the water chamber?
A. ResMed recommends replacing the water chamber approximately every 6–12 months, or sooner if it becomes cracked, leaks, or shows signs of wear.

Q. Can I use tap water in the water chamber?
A. For best performance and to reduce mineral buildup, ResMed recommends using distilled water where available. Always follow the guidance in your user manual.

Q. How do I clean the HumidAir™ Water Chamber?
A. Remove the chamber from the device, wash it with warm water and a mild detergent, rinse thoroughly, and allow it to air dry completely before reinstalling.

Q. Can the water chamber be removed for refilling?
A. Yes. The water chamber is fully removable, making it easy to refill, empty, and clean during routine maintenance.

Q. What is included in the package?
A. The package includes 1 × Genuine ResMed HumidAir™ Water Chamber for AirSense™ 11.

Q. Why should I replace my CPAP water chamber?
A. Replacing your water chamber helps maintain effective humidification, supports hygiene, and ensures reliable performance of your AirSense™ 11 CPAP machine.