Quick answer: This is the genuine ResMed InfinitySeal™ cushion for the AirFit F20 full face mask — the soft silicone cushion that seals over your nose and mouth. InfinitySeal is ResMed's most adaptive cushion, with variable thickness and multiple contours that conform to your face and hold a reliable seal in any sleep position, even at high pressures. A fresh cushion fixes leaks and restores comfort without a new mask. Choose your size — Small (63467), Medium (63468), Large (63469). Fits the AirFit F20 / F20 for Her and AirTouch F20 / F20 for Her frames. Prescription typically required.
What's included
- 1 × AirFit F20 InfinitySeal cushion (in your selected size)
Mask frame and headgear not included.
About this part
The cushion seals against your face — the most important part for comfort and a leak-free night, and a wear item that degrades with use. This is the genuine InfinitySeal silicone cushion:
- InfinitySeal design — variable thickness and multiple ("infinity") contours adapt to a wide range of facial structures; supports the sides of the nose and relieves pressure at the nasal bridge, reducing blowout/leaks.
- Seals at any pressure — maintains a secure seal across CPAP pressures, including high settings, and through position changes.
- Comfortable — soft, frosted silicone feels natural on the skin and reduces facial lines and pressure marks; quieter for a bed partner.
- Easy to replace — pops on/off the frame in seconds; size is marked (S/M/L) on the base of the cushion.
- Replace regularly — the silicone cushion is commonly replaced about every 2 weeks (or when it wears, leaks, or you're tightening more often) for the best seal and hygiene.
Compatibility — fits four F20 masks
The InfinitySeal cushion fits any F20 frame:
- AirFit F20 and AirFit F20 for Her
- AirTouch F20 and AirTouch F20 for Her (you can run a silicone InfinitySeal cushion on an AirTouch frame in place of the memory-foam cushion)
⚠️ Sizing note: Small and Medium fit both the F20 and F20 for Her; Large fits the AirFit F20 only (not the for Her). Match the size to your current cushion (letter marked on the base).
Key features
- Genuine ResMed AirFit F20 InfinitySeal cushion — silicone.
- Most adaptive ResMed cushion — variable thickness, multiple contours.
- Reliable seal at any pressure — reduces leaks and blowout.
- Fits all F20 frames — AirFit F20 / F20 for Her / AirTouch F20 / for Her.
- Three sizes — S (63467) / M (63468) / L (63469).
- Replace ~every 2 weeks — restores seal without a new mask.
Specifications
| Specification | Detail |
| Product type | Full face mask cushion (InfinitySeal silicone) |
| Compatible masks | AirFit F20, AirFit F20 for Her, AirTouch F20, AirTouch F20 for Her |
| Sizes / codes | Small 63467 · Medium 63468 · Large 63469 |
| Sizing note | S/M fit F20 & F20 for Her; L fits AirFit F20 only |
| Design | InfinitySeal — variable thickness, multiple contours |
| Replacement | About every 2 weeks (silicone) |
| Included | Cushion only |
| Not included | Frame, headgear |
| Material | Silicone; latex-free |
| HCPCS | A7031 |
| Prescription | Typically required |
| Brand | ResMed |
Frequently asked questions
What's included? One InfinitySeal cushion in your selected size. The frame and headgear are separate.
Which masks does it fit? All F20 frames — AirFit F20, AirFit F20 for Her, AirTouch F20, and AirTouch F20 for Her. You can use this silicone cushion on an AirTouch frame instead of the memory-foam cushion.
Which size should I choose? Small (63467), Medium (63468), or Large (63469) — match your current cushion (the size letter is on the base). Note: Large fits the AirFit F20 only, not the F20 for Her.
How often should I replace it? The silicone InfinitySeal cushion is commonly replaced about every 2 weeks, or sooner if it wears, leaks, or you're tightening more often.
How is it different from the AirTouch F20 cushion? The AirTouch F20 uses a memory-foam cushion (replaced ~monthly); this is the silicone InfinitySeal cushion. Both fit the F20 frames.
Do I need a prescription? A replacement full face cushion typically requires a prescription. We can help — contact us.
Can I get it delivered in Brooklyn or shipped nationwide? Yes — Task Supply Corp offers USPS shipping throughout the continental U.S., plus local pickup and delivery in Brooklyn and all five boroughs of New York City.
Use with a compatible ResMed AirFit/AirTouch F20 mask per the mask's user guide; keep the vent clear and replace the cushion regularly.