ResMed

ResMed AirSense 11 Side Cover (End Cap)

Name: ResMed AirSense 11 Side Cover (End Cap)
Brand: ResMed
SKU: MP-MP-RMD-AS11SC
Price: 18.40 USD
Availability: InStock

(83 reviews)

$18.40

Free Shipping Over $50

Price Match Guarantee

If you prefer CPAP therapy without added moisture, the ResMed AirSense 11 Side Cover replaces the humidifier chamber to create a clean, compact setup that allows your machine to run without humidification.

This side cover will automatically disable the heater plate and heated tubing on your AirSense 11 when installed. To regain these controls, simply swap back to your standard water chamber.

Streamlined setup: Run therapy without the water chamber installed.
Clean, finished look: Covers the open side for a tidy profile.
Easy attachment: Installs and removes in moments.

Manufacturer Product Number: 39226

AS11 Side Cover - What's Included

User Guide

A sleek look for your AirSense 11

Installation:

Power down and remove the AirSense 11 water chamber.
Align the Side Cover and press into place until flush.
To restore humidification, reinstall the water chamber.

Cleaning:

The side cover only needs to be wiped down externally as needed.
Do NOT wash the inside of the side cover or use water. There is sound-abatement foam inside the side cover, which is not designed to handle water.
The side cover is not designed to allow easy access to this interior foam for drying, so introducing water to it will allow mold to grow inside, and you'll need to replace it.
Inspect the silicone seals where the side cover connects to your machine's air outlets every 6 months for visible signs of cracking or leaks and replace as needed.

Additional tips:

The side cover introduces a closed air circuit that will not house moisture.
Only filtered air flows through it, so you don't need to clean the inside.
Once the side cover is inserted, there's no need to remove it unless you're planning to replace it with the standard water chamber.
If you still want to use heated tubing without humidification, continue using the empty water chamber instead, as this side cover will disable heated tubing automatically.

Keep your system ready with maintenance parts and power options designed for the AirSense 11.

AirSense 11 Disposable Filters to help maintain airflow quality.
ResMed SlimLine Tubing for a lightweight, flexible hose option.
Power Supply for AirSense 11 CPAP Machines for home replacement or backup.
ResMed AirSense 11 DC Power Cord for 12V power sources.
Standard Water Chamber for AirSense 11 HumidAir Heated Humidifier for a replacement water chamber.

Looking for the device itself? Explore the AirSense 11 AutoSet CPAP Machine.

Vendor Product Number	39226
Tax Category	Therapy Accessories

FAQs about the ResMed AirSense 11 Side Cover (End Cap)

You only need to wipe down the outside of the side cover as needed. The inside houses sound-abatement foam that should never be exposed to water.

While this foam is not accessible from the outside, the housing is not waterproof, and water will get into the foam if you try to wash it. The housing is not designed to be easy to take apart, so it will be difficult to dry the foam if it is exposed to water.

The inside of the side cover will only be exposed to filtered air and should not have moisture present at any point. Just as you do not need to clean the inside of your machine's motor, you do not need to clean the inside of the side cover, either.

If you do not use your humidifier or heated tubing, the AirSense 11 side cover offers quieter therapy and a more compact size for your AirSense 11 by replacing your current water chamber. The side cover uses sound-abatement foam to reduce airflow noise and slightly reduces the size of your AirSense 11.

4.8

Rated 4.8 out of 5 stars

Based on 83 reviews

Total 5 star reviews: 74

Total 4 star reviews: 5

Total 3 star reviews: 2

Total 2 star reviews: 1

Total 1 star reviews: 1

95%would recommend this product

Customers Talked About

Reviews Summary

Customers say this end cap allows them to use their machine without the water chamber, making it more compact for travel and storage. Many appreciate that it eliminates the need to carry distilled water or manage a water tank. Users find it easy to install—it simply snaps into place—and note the machine automatically adjusts settings when the cap is in use. Some mention it reduces weight and frees up space in travel cases. A few note the size reduction is modest, and one customer felt the price is high for the component. Overall, customers find it practical for those who don't use humidification.

Write a Review (Opens in a new window)

83 reviews

Sort

RAYMOND B.
Verified Buyer
22 seconds ago
Rated 5 out of 5 stars
ResMed AirSense 11 Side Cover
Perfect fit! Now, I can travel with a lighter weighing CPAP and smaller footprint in my luggage. If you don’t use humidification either, like me, this cap will also reduce the size of the AirSense 11 on your night-stand at home. There is less cleaning necessary too if you choose this option, since there is no reservoir to fill and empty every day.
Was this helpful?
Wally H. J.
Verified Buyer
4 days ago
Rated 5 out of 5 stars
Bought for my wife
Great price for side cover, works great, fast shipping
Was this helpful?
Martyn B.
Verified Buyer
6 days ago
Rated 5 out of 5 stars
It works great and very convenient
Wish I got this long ago
Was this helpful?
Russell L.
Verified Buyer
1 week ago
Rated 5 out of 5 stars
Love this option
Being able to turn off the heater for humidity (the air is humid enough in Texas) is fantastic!
Was this helpful?
Deborah C.
Verified Buyer
1 week ago
Rated 5 out of 5 stars
Side Cover
It is wonderful to not have to worry about changing the water in the chamber
Was this helpful?

Why cpap.com

We are experts in what we do!

25+ years of sleep apnea expertise, 2+ million masks personally fitted, and 500,000+ CPAP machines set to prescription. Our Sleep Specialists are here when you need them.

2.3+ million sleepers served since 1999

10,000+ five-star service reviews

USA Today Best Customer Service 2025

Call 1-800-356-5221