The AirFit F20 — the full face mask most people are fitted with
The most prescribed full face mask in the world, and it earned that by working for almost everyone. The InfinitySeal™ cushion was designed off thousands of facial scans and holds its seal across the full pressure range.
Genuine original equipment · no prescription needed for a mask · free U.S. shipping over $99.
Why the AirFit F20
Designed from a large facial-scan dataset to seal across a very wide range of face shapes — and to keep sealing at the high pressures where thinner cushions give up.
Standard, For Her (smaller frame and headgear), and a Non-Magnetic version for anyone who can’t use magnetic clips.
It’s the mask most people get fitted with at a sleep clinic, which also makes it the easiest one to get replacement cushions for anywhere.
Why it’s the default
Two reasons it stays the best-seller.
A full face mask covers nose and mouth, so your therapy keeps working even when you breathe through your mouth or your nose is blocked. It’s the type prescribed most often for mouth breathers, chronic congestion and higher pressures.
Will it fit my machine?
Standard connection — no adapter, no proprietary parts.
The AirFit F20 uses the universal 22 mm hose connection, so it works with standard CPAP and BiPAP machines. The one exception across our whole mask range is the AirMini, which needs its own mask-family setup pack — if that’s your machine, call us before you order.
Details
What’s included
- AirFit F20 frame in your selected version and size
- InfinitySeal™ full face cushion
- Headgear
- Elbow
Replacement cushions are sold separately — they’re the part that wears out, and they cost a fraction of a new mask.
Genuine original equipment — and no prescription needed
This is genuine original equipment — not a copy and not a compatible-brand cushion. Masks, cushions, headgear and tubing don’t require a prescription in the U.S. — only the CPAP or BiPAP machine does. A copy cushion never seals like the original, and on a mask, sealing is the entire job.
Full specifications
| Type | Full face mask |
| Coverage | Nose and mouth |
| Cushion | InfinitySeal™ silicone |
| Frame versions | Standard, For Her, Non-Magnetic |
| Cushion sizes | Small, Medium, Large — or All Sizes |
| Compatibility | CPAP, APAP and BiPAP machines |
| Hose connection | Standard 22 mm |
| Best for | Mouth breathers · congestion · higher pressures |
| Sourcing | Genuine original equipment |
| Prescription | Not required for masks |
Frequently asked questions
Do I need a prescription for this mask?
What is the Non-Magnetic version for?
Standard or For Her?
How do I know I need a full face mask?
Will it work with my CPAP?
It leaks. What do I do first?
Not sure this is the right mask for you? Ask us.
Tell us how you sleep, whether you breathe through your mouth, and whether you have a beard or wear glasses — we fit masks every day and we’ll say so if this isn’t the one.

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