Skip to product information
large airfit f40 cushion with vent ring, viewed from the front quarter
  • large airfit f40 cushion with vent ring, viewed from the front quarter
  • rear view of the airfit f40 cushion showing the side that touches the face
  • It's recommended that you replace this product every 3 months
  • vent ring included with f40 cushion replacement
  • ResMed AirFit F40 Full Face Cushion - CPAP.com
  • Airfit f40 available cushion sizes - small wide, medium, and large
  • includes airfit f40 cushion and vent ring
  • ResMed AirFit F40 Full Face Cushion
  • graphic calling out the benefits of cpap.com subscribe and save - automatic deliveries, save 10%, get free shipping plus double rewards points on every subscription order.
  • large airfit f40 cushion with vent ring, viewed from the front quarter
  • rear view of the airfit f40 cushion showing the side that touches the face
  • It's recommended that you replace this product every 3 months
  • vent ring included with f40 cushion replacement
  • ResMed AirFit F40 Full Face Cushion - CPAP.com
  • Airfit f40 available cushion sizes - small wide, medium, and large
  • includes airfit f40 cushion and vent ring
  • ResMed AirFit F40 Full Face Cushion
  • graphic calling out the benefits of cpap.com subscribe and save - automatic deliveries, save 10%, get free shipping plus double rewards points on every subscription order.
ResMed AirFit F40 Full Face Cushion
ResMed

ResMed AirFit F40 Full Face Cushion

(25 reviews)
$54.00
Size

Free Shipping Over $50

Price Match Guarantee

When a CPAP cushion wears, small leaks can interrupt therapy and comfort. The ResMed AirFit F40 Full Face Cushion restores a fresh, reliable seal so you can settle in and focus on rest.

Built with ResMed’s AdaptiSeal design and a soft feel, this replacement cushion is made exclusively for the AirFit F40 Full Face CPAP Mask and is intended to be replaced about every three months to help maintain consistent performance.

  • Comfortable feel: Soft cushion surface for gentle contact.
  • Secure seal support: Adapts to your face to help limit leaks.
  • Vent ring included: Also includes a new QuietAir vent ring.
  • F40-specific: Compatible only with the AirFit F40 mask.
  • Size options: Large, Medium, and Small Wide.

Manufacturer Product Number: 64629, 64628, 64627
small wide airfit f40 cushion with vent ring, viewed from the front quarter

Comfort that adapts with AirFit F40 Cushion
Fresh seal, better nights

Keep your therapy on track with the genuine AdaptiSeal replacement cushion for the AirFit F40 Full Face CPAP Mask. This soft, durable cushion is designed to adapt to your facial contours, helping maintain a comfortable, secure seal night after night. Replacing the cushion regularly supports consistent performance and can reduce common leak frustrations so you can focus on rest, not readjustments. Because a great night’s sleep shouldn’t hinge on a tired cushion.

  • Soft cushion designed for comfort
  • Adapts to your face for a secure seal
  • Durable for full face therapy needs
  • Replace about every 3 months
Comfort that adapts

The F40’s AdaptiSeal cushion aims to balance softness with stability so your seal feels natural, not forced. Swap in a new cushion to refresh fit and support consistent therapy.

  1. Soft feel for gentle contact
  2. Adaptive design to help limit leaks
  3. Built for full face performance
  4. Simple, quick replacement
F40-only compatibility made simple

This replacement cushion is only compatible with the ResMed AirFit F40 Full Face CPAP Mask. Choose the size that matches your current setup—available in Large, Medium, and Small Wide—and you’ll be ready for a straightforward refresh. If you need the complete mask or other parts, consider the full AirFit F40 Mask with Headgear. For best results, replace the cushion about every three months to help maintain a secure seal and comfortable therapy.

  • Only for the AirFit F40 mask
  • Sizes: Large, Medium, Small Wide
  • Quick, tool-free swap
  • QuietAir Vent Ring included
  • From an authorized ResMed seller
Specifications
Product Model AirFit F40
Vendor Product Number 64629
Tax Category CPAP Replacement Supplies
Billing Code A7031 (Full Face Cushion)
Product Life 3 - 6 Months
4.6
Rated 4.6 out of 5 stars
Based on 25 reviews
Total 5 star reviews: 18 Total 4 star reviews: 5 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 0
92%would recommend this product
Customers Talked About
Write a Review (Opens in a new window)
25 reviews
  • Robert G.
    Verified Buyer
    21 seconds ago
    Rated 5 out of 5 stars
    Total relief from mask with nose bridge

    Switched mask to the F 40 mask to eliminate nose irritation and had no regrets

    Was this helpful?
  • Pam D.
    Verified Buyer
    2 days ago
    Rated 4 out of 5 stars
    F40 Close to Great But Not Quite

    The AirFit F40 cushions are pretty good. Easy to clean, and the diffuser ("QuietAir Vent Ring") is nice so it doesn't blow air on my husband! I have never found a perfect mask in the 15+ years of my CPAP journey, but this one is pretty close. No mask has ever sealed perfectly for me, but this one does well. Also, the opening for the nose is smaller than I would like (and I tried all the sizes), so I do have to make a little adjustment there. Ordering was easy, shipping was fast, and the two cushions were packaged well. I would give it 4.5 stars, but since that isn't an option, I went with 4.

    Was this helpful?
  • Josh
    Flag of United States
    Verified Buyer
    1 month ago
    Rated 4 out of 5 stars
    Very comfortable but could be more durable.

    Very comfortable and great coverage versus a full faced mask. My only reason not 5 stars is durability. Wears out quicker than a full face mask.

    Was this helpful?
  • Joseph I.
    Flag of United States
    Verified Buyer
    1 month ago
    Rated 5 out of 5 stars
    Great price and great fit

    Great price and great fit

    Was this helpful?
  • JOSHUA M.
    Flag of United States
    Verified Buyer
    2 months ago
    Rated 5 out of 5 stars
    I watched a lot of

    I watched a lot of videos and read a lot of reviews on this style and they all agree this is a good starter mask. I was not disappointed. It works great and for a beginner it has allowed me a chance to get accustomed to sleeping positions.

    Was this helpful?

ResMed AirFit F40 Full Face Cushion

$54.00

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

Smiling woman with a headset next to a customer service award badge.