
ResMed AirFit F40 Full Face CPAP Mask
- ResMed's smallest tube-down full face mask — sits below your eyes
- QuietAir vent — 20 dBA
- Magnetic clips and only four adjustment points — quick to fit
- Low profile — wear glasses in bed
Stock coming within 3–4 days — order now to lock in your spot in the queue.
Get notified the moment it's back
Skip the wait — pop your email in and we'll let you know the second it's back in stock. No spam, just one quick heads-up.
Fast dispatch from SA and our partner stores. Usually same-day dispatch on orders placed before 1pm ACST, Mon–Fri.
If delivered late, you'll get A$10 off your next order.
These CPAP machines (tested by our team)
Standard 22 mm tubing — fits every modern CPAP/APAP. Each pairing below has been checked with this mask.
Replacement cushions & parts
Cushions soften and headgear stretches with daily use — keep your seal tight.
Description, specs & care
ResMed AirFit F40 is ResMed's smallest ultra-compact full face mask with a flexible design that allows you to sleep in your favourite positions, adding a fully flexible frame with new soft silicone cushions and fewer adjustment points for easy fitting and comfort. An UltraCompact under-the-nose design allows fl exible bedtime routines and sleeping
positions. And, it’s easy to snap on and snap off, even in the middle of the night.
The ultra-compact, this CPAP mask that combines high seal performance with comfort in a flexible, easy-to-use design. Minimal design that lets you wear glasses to read or watch TV. Four quick adjustment points and magnetic clips make it easy to use.
Designed for comfort, full face performance, and simplicity. The low-profile ResMed AirFit F40 was created with you, your therapy needs and your life in mind.
ResMed AirFit F40 Features and Benefits
+ New AdaptiSeal full face cushion Soft silicone adapts to the face, designed to maintain seal.
+ Quick-release elbow Makes it easy to connect and disconnect to therapy.
+ Short tube Reduces drag and moves with the patient.
+ QuietAir diffused venting Integrated into the cushion to provide a more peaceful bedroom environment.
+ Headgear adjustment points Two upper and two lower adjustment points simplifies fitting and use.
+ Flexible mask frame Plastic frame covered by a soft nylon fabric padding. The frame sits below the eyes, designed for comfort and to reduce facial marks.
+ Magnetic clips Easily snaps on and off, even in the middle of the night.
What’s Included
x1 AirFit F40 QuietAir Vent Ring
x1 AirFit F40 Quick-Release Elbow/Short Tube
Resources
Magnet safety warning
This mask has magnets in the frame and lower headgear clips (magnetic field strength up to 400 mT). Keep the mask at least 150 mm (6 in) away from implants or medical devices that may be affected by magnetic fields.
Do not use this mask if you, or anyone in close physical contact with you while you use it, has an active medical implant (such as a pacemaker, implantable cardioverter defibrillator (ICD), neurostimulator, cerebrospinal fluid (CSF) shunt or insulin/infusion pump), or a metallic implant or object that contains ferromagnetic material (such as aneurysm clips, embolic coils, stents, valves, electrodes, magnetic hearing implants, ocular implants or metal splinters in the eye). Ask your doctor if you are not sure.
Hand-wash the cushion daily in warm soapy water; air-dry out of direct sunlight. Wash the headgear weekly in cool water. Avoid alcohol-based cleaners and dishwashers.
Most users replace the cushion every 1–3 months and the headgear every 6 months with daily use — exact intervals vary by mask model and skin type.
Warranty. Manufacturer warranty applies — typically 90 days on the frame, cushion and headgear; see your product documentation for the exact warranty period for this model.
Returns. Change-of-mind returns within 30 days for unused, unopened masks. For hygiene, opened or used cushions and headgear can't be returned. Faulty items are covered under the Australian Consumer Law.
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Not sure this is the right mask?
Answer four quick questions — sleep position, breathing, beard, glasses — and we'll narrow it down to two or three masks worth trying.
Find your size & fit
Print the official fitting template, hold it to your face, and read your size.
- Print the template at 100% (it has a built-in ruler to confirm scale).
- Align the cushion shapes under your nose and read your size; between sizes, go larger.
ResMed AirFit F40 — Sizing & Care
Printable template- 1Print the template at 100%A4, single page, no "Fit to page". Use the credit-card check above.
- 2Hold the page against your faceSit upright, look straight ahead, line up the nose-bridge marker.
- 3Note the size that frames your nose / mouthRead the size letter at the matching outline.
- Print the template at 100% (it has a built-in ruler to confirm scale).
- Align the cushion shapes under your nose and read your size; between sizes, go larger.
Air on my eyes
Whistling at the cushion edge
Red marks on my cheeks or nose
Mask shifts during the night
Cushion: about every 1 month. Headgear: every 6 months. Frame: every 6 months. Replace sooner if the cushion tears, hardens or won't seal. General guide only — follow your clinician/supplier advice.





