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When your full face cushion shows wear, leaks start creeping in and you find yourself overtightening headgear to compensate. The ResMed AirFit F20 Replacement Cushion restores your mask to like-new seal performance with a fresh InfinitySeal silicone interface designed to fit 97% of faces.
The InfinitySeal design uses varying thickness levels within the cushion to adapt to different facial contours, maintaining a dependable seal across typical CPAP pressure settings without requiring excessive strap tension. The cushion covers both the nose and mouth for full face therapy and clicks onto the AirFit F20 frame for quick, tool-free replacement.
Available in Small, Medium, and Large. Small and Medium cushions fit both the AirFit F20 and AirFit F20 For Her masks. The Large cushion is designed for the AirFit F20 only. This is the silicone InfinitySeal version; for the memory foam alternative, see the AirTouch F20 Cushion.
Note: This is a replacement cushion only. The mask frame, headgear, elbow, and magnetic clips are sold separately.
InfinitySeal Design — Varying silicone thickness levels adapt to a wide range of facial structures, maintaining a dependable seal without overtightening headgear.
97% Fit Rate — Designed to fit the vast majority of faces based on ResMed’s internal fitting study, reducing the guesswork of cushion selection.
Full Face Coverage — Covers both the nose and mouth to support users who breathe through their mouth, nose, or both during sleep.
Cross-Compatible Sizing — Small and Medium cushions work with both the AirFit F20 and AirFit F20 For Her masks for flexible replacement options.
Tool-Free Replacement — Clicks directly onto the AirFit F20 frame in seconds, restoring seal performance without disassembling the entire mask.
| Specification | Details |
|---|---|
| Manufacturer | ResMed |
| Product Type | Replacement Full Face Mask Cushion |
| Cushion Design | InfinitySeal |
| Material | Silicone |
| Sizes Available | Small, Medium, Large |
| Small Part Number | 63467 |
| Medium Part Number | 63468 |
| Large Part Number | 63469 |
| Compatible Masks | AirFit F20, AirFit F20 For Her |
| Fit Rate | 97% of faces |
| Tax Category | CPAP Replacement Supplies |
| Billing Code | A7031 (Full Face Cushion) |
Compatible Masks:
Size Compatibility:
Not compatible with:
Silicone vs. Memory Foam: This is the silicone InfinitySeal cushion. If you prefer memory foam, the AirTouch F20 Cushion is interchangeable on the same F20 frame but requires monthly replacement instead of every 3–6 months.
Sizing Tip: Some users find a better seal by sizing down from their current cushion. If you experience persistent leaks with your current size, try the next size smaller before assuming you need a new frame.
Daily Cleaning: Wash the cushion with mild soap and warm water before or after each use. Rinse thoroughly and allow to air dry away from direct sunlight.
Weekly Cleaning: Disassemble and hand-wash with mild soap and warm water. Rinse completely and air dry fully before reassembling.
Replacement Schedule: Replace every 3–6 months, or sooner if you notice:
Do Not:
The varying thickness silicone cushion conforms to your unique facial contours rather than demanding a perfect fit from headgear tension alone. The result is a steadier seal with less tightening, fewer red marks, and more consistent therapy night after night.
Small and Medium sizes work with both the AirFit F20 and AirFit F20 For Her, so you don’t need to track different part numbers if you share a household or switch between Standard and For Her headgear.
The most common cause of persistent mask leaks is a worn cushion, not a broken frame or bad headgear. A simple cushion swap every 3–6 months restores seal integrity and comfort without replacing your entire mask system.
The ResMed AirFit F20 Full Face Mask and AirFit F20 For Her Full Face Mask. Small and Medium fit both masks; Large fits the AirFit F20 only.
Small, Medium, and Large. Some users find a better seal by sizing down from their current cushion.
Every 3–6 months. Replace sooner if you notice visible wear, persistent leaks, the need to overtighten, or discomfort that wasn’t present before.
This is the silicone InfinitySeal cushion that lasts 3–6 months and can be washed with soap and water. The AirTouch F20 cushion is memory foam, is softer, but needs replacement every 30 days and cannot be washed (wipe only).
Yes. The AirFit F20 silicone cushion and AirTouch F20 memory foam cushion are interchangeable on the same frame.
No. This is a replacement cushion only. The frame, headgear, elbow, and magnetic clips are sold separately.
Wash daily with mild soap and warm water. Rinse thoroughly and air dry away from direct sunlight. Do not use antibacterial soap, bleach, or alcohol.
InfinitySeal is ResMed’s cushion technology that uses varying thickness levels within the silicone to adapt to different facial contours, helping maintain a seal across a wide range of face shapes without overtightening.
No. The Large cushion is designed for the standard AirFit F20 only. Small and Medium cushions fit both the F20 and F20 For Her.
Signs include visible rips or tears, persistent leaks that weren’t present before, the need to overtighten headgear to maintain seal, discoloration, or loss of cushion softness.
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