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CPAP Humidifier Parts

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Product image for HumidX™ Plus for AirMini™ Travel CPAP Machine (6 Pack)

HumidX™ Plus for AirMini™ Travel CPAP Machine (6 Pack)

★★★★★
47 Reviews
$62.00
Product image for Standard HumidX™ for AirMini™ Travel CPAP Machine (6 Pack)

Standard HumidX™ for AirMini™ Travel CPAP Machine (6 Pack)

★★★★★
25 Reviews
$62.00
Product image for AirMini™ HumidX™ for AirFit/AirTouch F20 (6 Pack)

AirMini™ HumidX™ for AirFit/AirTouch F20 (6 Pack)

★★★★★
7 Reviews
$74.00
Product image for Standard HumidX™ for AirMini™ Travel CPAP Machine (3 Pack)

Standard HumidX™ for AirMini™ Travel CPAP Machine (3 Pack)

★★★★★
22 Reviews
$37.00
Product image for Side Cover for AirSense™ 10, AirStart™ 10, and AirCurve™ 10 Machines

Side Cover for AirSense™ 10, AirStart™ 10, and AirCurve™ 10 Machines

★★★★★
167 Reviews
$19.95
Product image for H2O 4 CPAP Distilled Water Filtering System

H2O 4 CPAP Distilled Water Filtering System

★★★★★
27 Reviews
$59.95
Product image for HumidX™ Plus for AirMini™ Travel CPAP Machine (3 Pack)

HumidX™ Plus for AirMini™ Travel CPAP Machine (3 Pack)

★★★★★
12 Reviews
$37.00
Product image for H2O 4 CPAP Distilled Water Replacement Filter

H2O 4 CPAP Distilled Water Replacement Filter

★★★★★
25 Reviews
$9.99
Product image for DreamStation Humidifier Flip Lid Seal

DreamStation Humidifier Flip Lid Seal

★★★★★
28 Reviews
$9.95
Product image for Humidifier Lid for ICON Series CPAP Machines

Humidifier Lid for ICON Series CPAP Machines

★★★★★
1 Review
$89.99
Product image for Tubing Elbow Adapter for CPAP and BiPAP Machines

Tubing Elbow Adapter for CPAP and BiPAP Machines

★★★★★
274 Reviews
$6.49
Product image for DreamStation Humidifier Dry Box Inlet Seal

DreamStation Humidifier Dry Box Inlet Seal

★★★★★
21 Reviews
$4.95
Product image for H4i™ Water Chamber Upgrade Kit for HumidAire 3i™ Heated Humidifiers

H4i™ Water Chamber Upgrade Kit for HumidAire 3i™ Heated Humidifiers

★★★★★
147 Reviews
$36.00
Product image for DreamStation Humidifier Dry Box Assembly

DreamStation Humidifier Dry Box Assembly

★★★★★
5 Reviews
$14.95
Product image for Humidifier Elbow Seal for PR System One 60 and 50 Series Machines

Humidifier Elbow Seal for PR System One 60 and 50 Series Machines

★★★★★
57 Reviews
$5.95
Product image for Dry Box Seal & Inlet Seal for PR System One Heated Humidifier

Dry Box Seal & Inlet Seal for PR System One Heated Humidifier

★★★★★
52 Reviews
$4.95
Product image for Pressure Valve (Humidifier Control) Keeps Water Out of Machine

Pressure Valve (Humidifier Control) Keeps Water Out of Machine

★★★★★
7 Reviews
$16.50
Product image for Flip Lid Seal for S9™ Series H5i™ Heated Humidifier

Flip Lid Seal for S9™ Series H5i™ Heated Humidifier

★★★★★
94 Reviews
$7.95
Product image for Resmed Passover Humidifier Connector

Resmed Passover Humidifier Connector

$12.50
Product image for HumidAire 3i™ Heated Humidifier Top Cover Lid and Seal

HumidAire 3i™ Heated Humidifier Top Cover Lid and Seal

★★★★★
25 Reviews
$29.99
Product image for H4i™ Heated Humidifier Top Cover Lid and Seal

H4i™ Heated Humidifier Top Cover Lid and Seal

★★★★★
90 Reviews
$13.95
Product image for Tub Plate Seal for H4i™ Water Chamber

Tub Plate Seal for H4i™ Water Chamber

★★★★★
1 Review
$5.95
Product image for Cleaning Plug for H4i™ Heated Humidifier Water Chamber

Cleaning Plug for H4i™ Heated Humidifier Water Chamber

★★★★★
1 Review
$7.95
Product image for Flip Lid for S9™ Series H5i™ Heated Humidifier

Flip Lid for S9™ Series H5i™ Heated Humidifier

★★★★★
14 Reviews
$19.95
53 Items |

Shop CPAP Humidifier Replacement Parts

During the course of your sleep apnea therapy journey, you’ll likely find yourself replacing just about every part of your CPAP setup at one point or another to ensure your equipment is working as it should. Some parts, such as your mask cushions, air filters, and headgear, need to be replaced more often than parts like your humidifier chamber or its seals and gaskets. Your humidifier chamber, however, isn’t bulletproof, but it will last you six months to a year on average before requiring replacement. 

Apart from your humidifier, you’ll also notice that there are some inlet and outlet seals that keep water where it’s supposed to be and air flowing the way it should. These seals will also need to be replaced when they start to wear out to maintain therapy effectiveness. Here, you’ll find replacement seals and gaskets for your humidifier chamber, HumidX replacement pucks for the ResMed AirMini, and an assortment of humidifier parts for older machines, like the PR System One and ResMed S9. 

When to Replace Your Humidifier Parts

While it isn’t always obvious, most of the time, you should be able to tell when a replacement part is needed, based on if your humidifier is working properly or not. The first sign of humidifier trouble is that the air coming from your CPAP machine won’t be humidified, causing you to experience the pains of dry mouth, throat, or nose, such as air passage soreness, nose bleeds, tooth irritations, bad breath, etc. 

If you are not receiving your typical humidified air, your humidifier could not be seated properly, the heating plate may not be working, or there may not be water in the chamber. If there’s an issue with your chamber itself, there will likely be a noticeable leak or crack. As long as you only use distilled water and don’t drop your humidifier chamber, it will likely last much longer than the recommended six-month replacement window. What’s more likely, however, is a faulty humidifier seal or gasket. Indicators that it may be time to inspect and replace your humidifier seals include an uncharacteristic hissing noise from your humidifier or an unusually high amount of water left in the humidifier reservoir in the morning.

Over time, humidifier seals and gaskets can also deteriorate, and the subtle vibrations from your machine can gradually unseat these parts, which increases the risk of water ending up in the sensitive electronics of your machine. If you frequently travel or relocate your CPAP machine, you may dislodge or misalign your seals without realizing it, so be sure to check that everything is lined up and secure in place before using your machine after moving it.

To ensure peak functionality, it’s important to clean your humidifier chamber weekly with mild soap and warm water. You should, however, empty and dry your humidifier chamber after each use. By also following the recommended replacement schedule, you can help ensure that your machine stays in proper working order. After about six months of machine use or when you start to notice changes in your therapy, you’ll want to begin inspecting your seals about once a month to ensure everything is in proper working order.

If you need help finding the right part, our Part Finder Tool is an excellent resource for locating some of the less-common parts that are associated with your machine, like your humidifier seals and gaskets.

Commonly Purchased Humidifier Replacement Parts and Accessories

Here’s a short list of some of the more popular humidifier replacement parts and accessories we sell:

  • Side Cover for the AirSense 10, AirStart 10, and AirCurve 10: If humidification isn’t for you, this unique accessory that’s designed for the AirSense 10, AirStart 10, and AirCurve 10 replaces your humidifier chamber for a sleeker look and more compact size while also slightly reducing your machine’s sound output. 
  • Standard HumidX 6 pk for AirMini: A product designed to add waterless humidification to your AirMini Travel CPAP without the need to travel with distilled water, the HumidX uses paper ridges to capture the moisture from your exhaled breath to humidify your incoming inhaled air for a more comfortable therapy experience. Should be replaced every 30 days for best results. Pack of six. 
  • HumidX Plus 6 pk for AirMini: The paper puck inside of the HumidX Plus features a wider radius than the one found in the standard HumidX, making it more effective at trapping moisture and re-administering it to you. It is designed for use in arid climates and high altitudes where humidity is especially low. Should be replaced every 30 days for best results. Pack of six. 
  • ResMed AirSense 10 Air Outlet Adapter: For all AirSense 10 CPAP models as well as the AirStart 10 and AirCurve 10, this replacement humidifier chamber air outlet is where humidified air exits your humidifier chamber and enters your CPAP hose. 
  • Humidifier Control Pressure Valve: An optional accessory, this humidifier pressure valve is designed to keep the water in your humidifier chamber from accidentally flowing into the sensitive electronics of your machine. It acts as an additional defense against costly machine damage.

Please Note: HumidX for AirMini is only compatible with mask setup packs that are designed for the AirMini. If you use the Zephair Adapter and a standard CPAP mask and tube, you can still enjoy waterless humidification with the generic Heat Moisture Exchange (HME) Units.

More Reasons to Shop at CPAP.com

Whether you’re replacing a humidifier chamber gasket, your mask cushion, or even your entire CPAP machine, we’ll ship your order the same day if you place it by 4 p.m. Central Standard Time (CST). We’re proud to offer several expedited delivery options—including priority overnight—to ensure that your supplies get to you as quickly as possible.

Looking to save even more? We offer a Subscribe & Save option for virtually anything you need to regularly replace to remove the mental load of ordering replacement supplies before you need them. Simply select the Subscribe & Save option on the product page or in your cart to not only save 10% on your replacement supplies but to get free shipping as well!

Whether it’s an order problem that needs a solution, a question about a product, or support to navigate your therapy journey, we’re here to help. Our expert customer service team is available at 1-800-356-5221 from 8 a.m. to 8 p.m. (CST) Monday through Friday and 8 a.m. to 5 p.m. on Saturdays. You can also text us at 832-308-2219 or reach out using the Live Chat feature on our website for assistance.


Customer Highlights


H2O 4 CPAP Distilled Water Filtering System
H2O 4 CPAP Distilled Water Filtering System

AMAZING

I found this product on a fluke. The Covid-19 virus created such a scare people purchased, all the water they could get, even that which we need for medical equipment, like a CPAP machine. Well, while looking online for distilled water, online, I came across this on another website. They were on backorder. Well, I'd been a customer here for many years, but forgot. What pops up, in this account. Where do they have this amazing product, right here! I ordered it, and love it. Even ordered the filters. I'm so grateful.

Verified Purchase 2020-03-25

Humidifier Chamber Air Outlet for ResMed AirSense™ 10, AirStart™ 10 and AirCurve™ 10 Series CPAP and BiLevel Machines
Humidifier Chamber Air Outlet for ResMed AirSense™ 10, AirStart™ 10 and AirCurve™ 10 Series CPAP and BiLevel Machines

Air Outlet For ResMed AirSense 10

This product was sent quickly thoroughly properly exactly what I needed it was kind of tricky to find the exact one but CPAP.com made it easy and have a tremendous customer support. I gave them 10 stars out of 10.

Verified Purchase 2019-01-18

HumidX™ Plus for AirMini™ Travel CPAP Machine (6 Pack)
HumidX™ Plus for AirMini™ Travel CPAP Machine (6 Pack)

Wow! They Really Work!

I was a little concerned about not having a humidifier on the Airmini, but these really work well. Like everyone else says it takes one use to get them working, but after that, they work like a charm.

Verified Purchase 2019-12-14

DreamStation Humidifier Flip Lid Seal
DreamStation Humidifier Flip Lid Seal

DreamStation Replacement Parts

These gaskets and parts all fit properly and seem to me to meet all specs for original or (O.E.M.) replacement parts, I am satisfied with the products and their performance and would recommend them to anyone getting parts that will work correctly.

Verified Purchase 2020-02-11

Flip Lid Seal for S9™ Series H5i™ Heated Humidifier
Flip Lid Seal for S9™ Series H5i™ Heated Humidifier

Fits & Works Great

Old gasket was leaking. APRIA supplies my masks and tubing but didn't seem to know or understand what I was talking about when I asked for a replacement gasket for the lid. So glad I found CPAP.com they allowed me to order my replacement and got it within the week. It fits and works terrific.

Verified Purchase 2019-01-21

Humidifier Elbow Seal for PR System One 60 and 50 Series Machines
Humidifier Elbow Seal for PR System One 60 and 50 Series Machines

Rare Replacement Seal

Finding this humidifier elbow seal for sale on CPAP.com was completely unexpected. I'd been told by my official Rx-related provider that no such replacement parts were offered. So glad I discovered CPAP.com, they've helped me extend the life of my humidifier. The new OEM seal works perfectly as expected.

Verified Purchase 2018-03-10

Dry Box Seal & Inlet Seal for PR System One Heated Humidifier
Dry Box Seal & Inlet Seal for PR System One Heated Humidifier

No Noise !!!

My CPAP was making an awful roar. I did my research and found the parts I needed and ordered them from CPAP.com. I changed the seals and now I can sleep with no sound. Thanks to CPAP.com I have peace. This is a great company friendly with fast service.

Verified Purchase 2018-06-28

Standard HumidX™ for AirMini™ Travel CPAP Machine (3 Pack)
Standard HumidX™ for AirMini™ Travel CPAP Machine (3 Pack)

They Work

I was skeptical about these but a humidifier is a must for me so I bought them. They work. Definitely, a must-have for me to use this machine.

Verified Purchase 2018-10-03

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