Description
Quick answer: The ResMed AirFit F40 is ResMed’s smallest tube-down full face mask — a complete kit that pairs full face performance with an UltraCompact, low-profile design. It includes the frame, the total-silicone AdaptiSeal™ cushion, the short tube and quick-release elbow, and the headgear. The under-the-nose cushion covers the mouth while sitting below the nostrils, and magnetic clips make it quick to put on and take off. Available in three cushion and three headgear sizes for a wide fit range. A prescription is required.
What’s included
- 1 × AirFit F40 frame (with soft fabric sleeves)
- 1 × AdaptiSeal™ full face cushion
- 1 × short tube + quick-release elbow (with QuietAir™ venting)
- 1 × headgear
You’ll need your own CPAP machine and tubing. Prescription required.
About this mask
The AirFit F40 delivers full face coverage — nose and mouth — in a compact, minimal-contact design. The total-silicone AdaptiSeal cushion adapts to the contours of the face to maintain a secure, comfortable seal even as you change positions during sleep, and it rests under the nose (not over the bridge) for a clear line of sight, so you can read or watch TV in bed. The fully flexible frame with fabric sleeves reduces pressure points and facial marks, the magnetic clips snap on and off easily, and the short tube with swivel reduces drag for freedom to move. QuietAir venting keeps exhaled air gentle and quiet.
Key features
- Complete kit — frame, AdaptiSeal cushion, short tube/elbow, and headgear.
- UltraCompact under-the-nose design — covers the mouth, sits below the nostrils; clear view.
- AdaptiSeal™ total-silicone cushion — adapts to the face for a stable seal.
- Magnetic clips + quick-release elbow — quick to fit and remove.
- Flexible frame with fabric sleeves — fewer pressure points and facial marks.
- QuietAir™ venting — quiet exhalation.
- Universal frame — works with any F40 cushion size.
Specifications
| Specification | Detail |
|---|---|
| Product type | Full face CPAP mask kit (complete) |
| Style | Under-the-nose, tube-down |
| Cushion | AdaptiSeal™ total silicone |
| Clips | Magnetic |
| Cushion sizes | Small-Wide, Medium, Large |
| Headgear sizes | Small, Standard, Large |
| Includes | Frame + cushion + short tube/elbow + headgear |
| Compatibility | Standard CPAP/BiLevel tubing (all manufacturers) |
| Prescription | Required (U.S.) |
| Brand | ResMed |
Choosing a size
The F40 comes in three cushion sizes (Small-Wide, Medium, Large) and three headgear sizes (Small, Standard, Large) for a 98% fit range. The frame is universal, so any F40 cushion size fits it. Use the ResMed AirFit F40 sizing guide, and contact us if you need help.
Frequently asked questions
What’s included in the kit?
The frame, the AdaptiSeal cushion, the short tube with quick-release elbow, and the headgear — a complete mask system.
How is the F40 different from larger full face masks?
It’s ultra-compact with an under-the-nose cushion, so it makes less facial contact and leaves a clear field of view, while still covering the nose and mouth.
Does it use magnetic clips?
Yes — the F40 uses magnetic clips for quick on/off. (This mask contains magnets; refer to the user guide for magnet contraindications and warnings.)
What machines does it work with?
It connects to standard CPAP and BiLevel tubing from all manufacturers.
Do I need a prescription?
Yes — a prescription is required in the U.S.
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.
This is a prescription medical device. Use it according to the ResMed user guide and your healthcare provider’s guidance, including magnet contraindications and warnings.
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