ResMed AirSense 11 HumidAir CPAP Water Tub

ResMed AirSense 11 HumidAir CPAP Water Tub

Model: 39100, 39101
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Key Features:

  • Replacement Water Tub for ResMed AirSense 11 CPAP, Elite and AutoSet
  • Choose Between Standard (hand wash only) or Cleanable (top rack dishwasher safe)
  • 380 ml Maximum Capacity

AirSense 11 HumidAir Humidifier Water Tub by ResMed

The ResMed AirSense 11 HumidAir Humidifier Water Tub is the replacement water tub for the new ResMed AirSense 11 AutoSet CPAP Machine. It can be replaced by the AirSense 11 Side Cover if you do not wish to use the built-in humidifier with the AirSense 11.

Cleaning and Maintenance

Empty the water tub and rinse thoroughly with drinking-quality water. Allow it to air dry out of direct sunlight.

  1. Soak the water tub in a basin of warm soapy water for up to 30 minutes. Use a mild detergent that is free from bleach and other harsh chemicals. It is recommended to select the delicate or glassware setting on the dishwasher when washing the cleanable water tub. Please note that either water tubs should not be washed in temperatures higher than 131ºF (55ºC).
  2. Rinse thoroughly and allow to air dry away from direct sunlight. 
Technical Data
39100, 39101
Machine Size Only
6 x 5.5 x 3.5 (L x W x H) inches
Water Chamber Capacity
380 mL to Maximum Fill Line
1 year
Item Includes

1x AirSense 11 Water Tub (Cleanable or Standard)

Reviews (2)
Michael C 01/15/2023
1 of 5 Stars!

Subject: terrible cpap
Some 20 yr old designed this thing for looks and not use. The water tank is SO small it’s ridiculous. Ya I know, turn down the temp and humidity, should not be the answer. The patient should have as much moisture as they feel they need, not adjust settings due to design failure.

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

Displaying 1 to 2 (of 2 reviews)
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Q&As (10)
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.
So you mean, the cleaning and maintenance instruction on this page is not for the cleanable tub?
Cleaning your water chamber in a tub of soapy water and a brush to get in all the corners periodically is always a good idea. The cleanable tub can then use the dishwasher in between if you so choose. There is no such thing as too much cleaning to beat bacterial growth and keep you healthy.
I use the cleanable tub. Do I have to soak the water tub in a basin of warm soapy water for up to 30 minutes before I wash it in the dishwasher as you instructed on this page?
One or the other will keep on top of the bacteria. No need to do both necessarily.
Looking for humidifier tank that will work with my SoClean.i.e .A tube on tank for hose to connect to from SoClean
You will need to contact So Clean to see if they have one available. We do not carry any So Clean products.
You are giving out the wrong information. Did you know that? If a person uses part number 39101, according to ResMed regular tap water can be used . If using part number 39100, use only distilled water. Make this clear on your website.
Hi there, it is actually always recommended to use Distilled water over tap water with a humidifier.
Hello, Just received my new RESMED 11 autoset (39000). during orientation to machine the RT informed that I could use BOTTLED H20. I asked if I needed to use distilled water ... answer was NO. I could use bottled water. My tub has the White tab on top middle of tub. Question is: Can I use Ozone and Reverse Osmosis Filtrated Water... OR... Distilled ONLY?

Hello, it is recommended that distilled water or bottle water but you need to rinse the tub daily with soap and water. You may try osmosis filtrated water as long as the minerals and calcium is removed and again I would recommend that you wash your tube daily. Just do not use water right out of a faucet.
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:
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.
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.
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.
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