The AirFit F40 — full face therapy that stopped feeling like a full face mask
the manufacturer’s answer for people who need full face coverage but hate wearing it. A flexible frame and an adaptive cushion conform to your face, so you get the seal with much less mask pressing back at you.
Genuine original equipment · no prescription needed for a mask · free U.S. shipping over $99.
Why the AirFit F40
Far less surface on your face than a traditional full face mask, which means fewer pressure points, less irritation and fewer red marks in the morning.
The cushion conforms to your face shape rather than forcing your face to conform to it — that’s where the seal comes from at higher pressures.
Exhaled air is diffused instead of jetted, so neither of you gets woken by a draft across the pillow.
Full coverage, less on your face
Why long-term users switch to the F40.
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 F40 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 F40 frame in your selected size
- Adaptive full face cushion (or all sizes with the Starter Pack)
- Headgear · user guide
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 |
| SKU | F40-AF |
| Coverage | Nose and mouth |
| Frame sizes | Small, Standard, Large |
| Cushion sizes | Small, Medium, Small-Wide — or Starter Pack with all |
| Design | Minimal-contact, flexible frame |
| Hose connection | Standard 22 mm — fits standard CPAP & BiPAP |
| 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?
Should I get the Starter Pack or a single size?
I’ve given up on full face masks before. Is this different?
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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Mary (verified owner) –
After ordering this face mask and then receiving it in the mail and trying it on it was way too big both the headgear as well as the mask it leaked air terribly and it was not returnable I was very disappointed