ResMed AirFit F20 InfinitySeal Full Face Cushion

Description

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

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 — Stark Medical Supplies offers local pickup and delivery in Brooklyn and across NYC, plus USPS shipping throughout the continental U.S.

Use with a compatible ResMed AirFit/AirTouch F20 mask per the mask’s user guide; keep the vent clear and replace the cushion regularly.