ResMed AirSense 11 HumidAir CPAP Water Tub
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ResMed AirSense 11 HumidAir CPAP Water Tub

Model: 39100, 39101
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HumidAir 11 Heated Humidifier For AirSense 11

ResMed's HumidAir 11 Heated Humidifier is compatible with the brand-new line of AirSense 11 CPAP machines. The ResMed AirSense 11 CPAP heated humidifier is capable of enhancing therapy by preventing some common side effects associated with sleep apnea therapy, including rainout. Compatible with ResMed's new ClimateLineAir 11 tube, the humidifier is a comfort feature that will help you get the most out of your therapy. The cleanable version allows you to clean it with your dishwasher - low maintenance! The water tub has a maximum capacity of 380 mL.

Cleaning & Maintenance

Use mold detergent/soap and water only. The cleanable tub is dishwasher-safe!
Empty the humidifier tub and wipe it thoroughly with a clean disposable cloth. Allow it to dry out of direct sunlight.

  1. Wash the water tube in warm water using a mild dishwashing liquid OR in a solution with a ratio of 1 part vinegar and 9 parts water at room temperature. Components should not be washed in temperatures higher than 131ºF (55ºC).
  2. Rinse thoroughly in water
  3. Allow it to dry out of direct sunlight or heat
  4. Wipe the exterior of the device with a dry cloth

Note: The cleanable water tub may be washed in a dishwasher.

Reviewers Tip:
Please remove the tub from the humidifier before pouring distilled water into the water tub. Do NOT try to fill the tub while it is connected to the machine.
A water chamber must always be installed in the AirSense 11 device for it to work properly unless a side cover is attached.


Is this humidifier compatible with the S8, S9, or AirSense 10 machines?
No, the HumidAir 11 is only compatible with the AirSense 11 CPAP line.


Model 39100, 39101
HCPCS Code A7046
Water Chamber Capacity 380 mL to Maximum Fill Line
Dimensions 6 x 5.5 x 3.5 (L x W x H) inches
Warranty 1 year

1 x water tub (cleanable or standard)

Ralston S 11/10/2022
5 of 5 Stars!

Subject: leaking air sense 10 water tub
wil this air sense 11 resmed water humidifier tub fits my resmed air sense 10?air sense 10 water tub was leaking due to factory deffect

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Have a question on this item? Ask here and we will answer it in 12-24 hours, usually in a few business hours! Questions and answers will appear here after we answer. You may also have email notifications.
Do you make a larger water chamber for Airsense 11? I have to refill mine twice each night.
Hi there, unfortunately the water chamber for the Airsense 11 only comes in 1 size. You could try lowering your humidity level and tube temperature slightly to see if you can tolerate a bit less moisture. This will help the water last longer throughout the night.
will this air sense 11 water humidifier fits my airsense 10 ?
Hi there, the Airsense 11 and Airsense 10 Water chambers are both different, so this will not work with your Airsense 10. The Airsense 10 water chamber can be found here:
Is this free shipping and return
We offer free standard shipping on orders $99 and above. Returns are accepted with 30 days of your order date. If the product is unopened, unused and in the original package, ship back the item to us with your invoice. We will refund 100% to your credit card or PayPal account as long as the item is in resaleable condition. If the item has been used, please contact us prior to shipping it to us. We will offer store credit instead of a refund for used/opened items.
How do you open the humidifier show me
Hello, please review this manual. If this does not help, please contact our office and we will be happy to help.
Can you use tap water to fill it??
You should always want to use distilled water with your CPAP machine. Feel free to wash your equipment with tap water.

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