Compact full face, under the nose
ResMed AirFit F40
A compact full face mask that covers the mouth without touching the bridge of the nose, with three cushion sizes and three headgear sizes. With its QuietAir vent ring, ResMed declares 13 dBA at one metre.

Image: ResMed
A compact full face mask under the nose
Strengths
- Does not touch the bridge of the nose
- QuietAir vent, 13 dBA declared at one metre
- Three cushion and three headgear sizes
Watch out for
- Magnets: contraindicated with some implants, see the warning
- Not compatible with the AirMini according to ResMed
- Pressure range limited to 30 cmH2O
Best for
- Mouth breathers
- Sensitive nose bridge
- Noise-sensitive bed partners
CPAP Ranker analysis: editorial, written from the manufacturer's documents, sources at the bottom of the page. It is not a patient review.
Buy from our partner
CPAP Ranker is funded by VivaRespire. That partnership has no influence on ratings or reviews.
Someone you know on CPAP is hesitating? Send them this page.
Manufacturer warning: magnets
Magnets in the frame and headgear clips. ResMed contraindicates this mask for people, or anyone in close contact with them, who have certain active implants (pacemaker, defibrillator, neurostimulator, shunt valve, insulin pump) or ferromagnetic metal implants, and asks to keep the magnets at least 150 mm away from such devices. Magnets up to 400 mT at the surface.
Read the official safety noticeWhat patients say
Nobody has rated the AirFit F40 yet.
Your review will be the first, and it counts twice: it helps the next patient, and earns you the Pioneer badge reserved for the authors of the first 100 reviews.
Write the first reviewSpecifications
Data published by the manufacturer, checked in its user guides. A missing field means the information was not found.
- Sizes
- S large, M, L
- Cushion material
- silicone
- Declared noise
- 13 dBA at 1 m · 20 dBA sound power
- Magnets
- Yes
- Top-of-head tube
- No
- Nose bridge
- Free, the mask does not touch it
- AirMini compatible
- No
Compare the AirFit F40
In the same category
Fisher & Paykel
Evora Full
Compact full face, under the nose
Compact under-the-nose full face mask
- Nose bridge free
- No magnets
- Quiet vent
No review yet, be a pioneer
Philips Respironics
DreamWear Full Face
Compact full face, under the nose
Under-the-nose full face, top tube
- Top-of-head tube
- Nose bridge free
- Magnets
No review yet, be a pioneer

ResMed
AirFit F30i
Compact full face, under the nose
Under-the-nose full face, top-of-head tube
- Top-of-head tube
- Nose bridge free
- Magnets
No review yet, be a pioneer
4 sources consulted
- https://maskguide.resmed.com/airfit-f40
- https://document.resmed.com/documents/products/mask/airfit-f40/user-guide/638361_airfit-f40_user-guide-eur1-multi.pdf
- https://newsroom.resmed.com/news-releases/news-details/2023/ResMed-Notifies-Customers-About-Updated-Instructions-and-Labeling-for-Masks-with-Magnets-Due-to-Potential-Interference-with-Certain-Medical-Devices/default.aspx
- https://maskguide.resmed.com/discontinued-masks
An error, outdated information? Tell us through the feedback button and we will fix it.