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ResMed
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ResMed
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Genuine full face CPAP cushion with InfinitySeal™ technology — for the AirFit F20, F20 For Her and AirTouch F20 frames

The ResMed AirFit™ F20 Cushion is designed to provide a comfortable and dependable seal for your full face CPAP mask. Its flexible silicone construction adapts to facial contours, supporting a secure seal throughout the night while keeping therapy pressure where it belongs.
The cushion is the part of your mask that does the sealing, and it's also the part that wears out first. Silicone softens and stretches with nightly use, facial oils and washing, and once it loses its shape the seal starts to break — usually showing up as air hissing past your cheeks, water in your eyes, a mask you keep tightening, or leak figures creeping up on your machine. Replacing the cushion restores the fit without replacing the whole mask.
*The cushion contains no magnets. The AirFit F20 and AirTouch F20 headgear use magnetic clips, so if you have a contraindication to magnet exposure, see the magnet safety notice below — it applies to the mask system, not to this cushion.
| Specification | Details |
|---|---|
| Brand | ResMed |
| Product Type | Replacement Full Face Cushion |
| Part Category | Genuine ResMed Replacement Part |
| Compatibility | AirFit™ F20, AirFit™ F20 For Her & AirTouch™ F20 frames |
| Material | Medical-Grade Silicone |
| Technology | InfinitySeal™ Cushion Design |
| Available Sizes | Small, Medium & Large |
| Therapy Pressure Range | 4–30 cm H2O |
| Magnetic Components | None in the cushion — F20 headgear uses magnetic clips |
| Latex Free | Yes |
| Washable | Yes — mild soap and warm water |
| Recommended Replacement | Every 1–3 months, or sooner if the seal deteriorates |
| Compliance | CE Marked, EU MDR Compliant |
| Intended Use | Treatment of Obstructive Sleep Apnoea (OSA) in Adults |
| Included in Package | 1 × AirFit F20 Cushion (size as selected) |
All three sizes fit the same F20 frame, so changing size never means buying a new mask — only a new cushion.
Cushions are not interchangeable between ResMed mask families — each is moulded to a specific frame. Check the model printed on your frame before ordering.
The cushion wears fastest, but it isn't the only part on a schedule. If your mask has started leaking and a new cushion hasn't fully fixed it, stretched headgear is usually the culprit.
This silicone cushion is fully washable — unlike the AirTouch F20 memory foam cushion, which must never be submerged.
Using a genuine ResMed replacement cushion helps preserve the seal quality and therapy performance your F20 mask was designed for. Off-brand or worn-out cushions can compromise your seal, leading to air leaks and reduced therapy effectiveness. Replacing your cushion on a regular schedule is one of the simplest ways to keep your CPAP therapy comfortable, hygienic and consistent night after night.
This cushion contains no magnets. However, the AirFit F20 and AirTouch F20 headgear use magnetic clips, which may interfere with certain implanted medical devices or metallic implants — including pacemakers, neurostimulators, metallic haemostatic clips in the head and metallic splinters in the eye. This is not a complete list.
ResMed produces a non-magnetic (NM) version of the F20 for users with contraindications to magnet exposure. If you have any implanted medical device, read the magnet contraindications document below and consult your healthcare provider before using the mask system.
This cushion is a component of a medical device used for the treatment of obstructive sleep apnoea and related respiratory conditions under the direction of a qualified healthcare professional. Confirm this cushion matches your exact frame model and size before use — an incorrect fit can reduce seal quality and therapy effectiveness.
Inspect the cushion regularly for cracking, stiffening or discolouration and replace it if the seal is compromised. Never block or modify the mask vent. Please consult your clinician or CPAP supplier if you are unsure which cushion or size is right for your prescribed therapy.
Download the official ResMed documents for your F20 mask, including cushion sizing, fitting, cleaning and magnet safety.
🛡️ For Machines : Every eligible product you purchase is backed by a 2-year manufacturer warranty, covering manufacturing defects and workmanship under normal use.
⚠️ For Masks & Accessories : CPAP
masks and mask components are covered by a 6-month warranty against
manufacturing defects only.
*Not covered: Normal wear and tear, misuse, improper cleaning, accidental
damage, or unauthorised modifications.
🚚 Free Next-Day UK Delivery : Orders placed before 3:00 PM GMT, Monday to Friday, are dispatched the same day using our next-day delivery service.
📖 Read More — To view our detailed Shipping policy
↩️ 30-Day Easy Returns : We offer a 30-day return policy on eligible items that are unused, unopened, and in their original sealed packaging. For hygiene and safety reasons, opened or used CPAP Machines, masks, cushions, and other personal-use accessories cannot be returned or replaced.
📖 Read More — To view our detailed Returns & Exchange policy
Q: Does this listing include the complete CPAP mask?
A: No. This listing includes one genuine ResMed AirFit™ F20 replacement cushion only. The frame, headgear, elbow, tubing, and CPAP machine are sold separately.
Q: Which masks is this replacement cushion compatible with?
A: This cushion is compatible only with the ResMed AirFit™ F20 and AirFit™ F20 For Her Full Face CPAP Mask systems. It is not compatible with the AirFit™ F30i, F40, N20, or other ResMed mask models.
Q: How often should I replace the AirFit™ F20 cushion?
A: For optimal comfort, hygiene, and seal performance, ResMed recommends replacing the cushion every 1–3 months, or sooner if it becomes worn, discoloured, cracked, or starts leaking.
Q: How do I choose the correct cushion size?
A: The AirFit™ F20 Replacement Cushion is available in Small, Medium, and Large. Simply select the same size as your current cushion, or use ResMed's official sizing guide if you're unsure.

Perfect product, quick delivery and communication.
Would reuse!
Hi Terri, thank you for your fantastic review! We're delighted to hear you're happy with the product and our service. Looking forward to serving you again!
Great made, good fit
Thank you for your positive feedback! We're glad the cushion fits well. If you need anything else, feel free to reach out.
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