Your cart
100% Secure Payments
ResMed
Sold out
ResMed
Couldn't load pickup availability
Genuine AdaptiSeal™ Silicone Cushion for the AirFit F40 Full Face CPAP Mask
Refresh the comfort and performance of your CPAP mask with the ResMed AirFit F40 AdaptiSeal Cushion. Designed exclusively for the ResMed AirFit F40 Full Face CPAP Mask, this genuine replacement cushion restores a secure, comfortable seal to help ensure effective sleep therapy without replacing the entire mask.
Crafted from soft, flexible silicone elastomer, the AdaptiSeal™ cushion is engineered to conform to the unique contours of your face. Its seamless, no-hard-parts design helps reduce pressure on the face while providing a stable seal across a wide range of sleeping positions. The lightweight construction enhances comfort, making it easier to wear throughout the night.
Replacing your cushion at regular intervals can help reduce air leaks, improve mask performance, and support consistent CPAP therapy. The cushion snaps on and off easily, allowing for quick replacement and simple daily cleaning. It is available in multiple sizes to help you achieve the best possible fit.
| Specification | Details |
|---|---|
| Manufacturer | ResMed |
| Product Type | Full Face CPAP Replacement Cushion |
| Compatible Mask | ResMed AirFit F40 Full Face CPAP Mask |
| Cushion Technology | AdaptiSeal™ |
| Available Sizes | Small, Medium, Large |
| Material | Soft Silicone Elastomer |
| Weight | 26 g |
| Therapy Pressure Range | 4–30 cm H₂O |
| Latex Free | No |
| AirMini™ Compatible | No |
| Contains Magnets | No |
| Package Contents | 1 × AirFit F40 Replacement Cushion Only |
The AirFit F40 cushion is available in Small, Medium, and Large to accommodate a range of facial shapes. Choosing the correct size supports a better seal, fewer leaks, and more comfortable therapy — we recommend checking against the official ResMed sizing guide before ordering if you're unsure which size you currently use.
Regular cleaning extends the life of your cushion and helps maintain hygiene for safe, effective therapy.
A worn cushion is one of the most common causes of mask leaks and disrupted therapy — and one of the easiest to fix. As a genuine ResMed component, this AdaptiSeal™ cushion is built to the exact specification of your AirFit F40 mask, so fit, seal, and comfort are exactly as intended. Its magnet-free, no-hard-parts construction makes it a straightforward, reliable way to keep your therapy consistent night after night, whether you're replacing a worn cushion or keeping a spare on hand.
This cushion is a component of a medical device intended for the treatment of obstructive sleep apnoea and must only be used as part of a complete, compatible ResMed AirFit F40 mask system prescribed or recommended by a qualified healthcare professional.
Always confirm cushion size and mask compatibility before use, and inspect the cushion regularly for signs of wear, damage, or discolouration. A damaged or poorly fitted cushion can reduce seal quality and therapy effectiveness.
If you experience skin irritation, persistent leaks, or any adverse reaction while using this product, discontinue use and consult your CPAP provider or healthcare professional.
All our products are covered by standard manufacturer warranties. Most CPAP masks and accessories include a 90-day warranty against defects, while CPAP machines generally include a 2 to 3-year warranty.
Free Next-Day UK Delivery: Orders placed before 3:00 PM GMT Monday to Friday are shipped same-day for next-day delivery.
30-Day Easy Returns: We offer a 30-day return policy for unopened and unused items in their original packaging.
Sign up for exclusive CPAP discounts, rewards, and early access to sleep solutions.
