
ResMed AirFit N20 Nasal Mask
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- 30-night fit guarantee Try your mask for up to 30 nights. If it doesn't fit, send it back for store credit toward another size or style. Unopened masks can be returned for a refund or store credit.
- Price match guarantee
Overview
The ResMed AirFit N20 covers just your nose with a silicone cushion that inflates gently against your skin, and it's designed to hold that seal at any pressure setting. You get a steady fit without strapping it tight, which leaves room to relax and fall asleep.
Night to night, the soft frame rests below your eyes, so you can wear glasses or watch TV in bed with the mask on. Magnetic clips take it off and put it back on in two snaps, and the straps stay exactly where you set them.
Key features:
- Broad fit: In ResMed's own international fitting study, the AirFit N20 comfortably fit 99% of the people who tried it.
- Easy refits: ResMed's guide notes it often needs less tightening than other nasal masks, with the upper straps doing most of the work.
- Pairs with AirMini: Use it with ResMed's AirMini travel machine through the N20 setup pack and its waterless humidifiers.
- Room to switch: The AirTouch N20 memory foam cushion clicks into this same frame if you ever want a softer feel.
- Latex free: No natural rubber latex or PVC goes into it, which matters if you live with a latex allergy.
- Licensed in Canada: Its Class II medical device licence from Health Canada is listed with the other details under Specifications.
The AirFit N20 suits nose breathers who sleep on their side, wear glasses, or read in bed. If you breathe through your mouth, the AirFit F20 full face mask is the closer match, and the For Her Small brings lavender accents and smaller headgear.
Note: The frame and lower clips contain magnets. If you or anyone close to you at night has a pacemaker, defibrillator or any implant magnets could disturb, call us about a mask without magnets.
How it works
Fitting it
Undo both magnetic clips, hold the cushion against your nose, and pull the headgear over your head logo outward. Run the lower straps below your ears, and the clips will find the frame on their own.
Even out the upper straps until the mask sits just over your nose, then the lower ones until it feels stable. Connect your hose to the short tube, and click the elbow in on both sides. Avoid sliding the mask down your face as you fit it, since that can fold the cushion's edge.
Keeping it clean
After each night, take off the cushion, elbow and short tube, and soak them in warm water with a mild detergent for up to ten minutes. Brush the small vent holes on the elbow, rinse everything under the tap, and let it air-dry out of the sun.
Once a week, give the headgear and frame the same soak, magnetic clips and all. Skip the dishwasher, the washing machine, and ozone or UV cleaners, which ResMed hasn't validated and which can discolour the mask.
Additional information
Sleek, soft and adaptive, ResMed's AirFit N20 nasal CPAP mask combines an advanced InfinitySeal cushion with a flexible frame, and plush headgear, to deliver superior comfort and a secure seal with minimal facial contact. AirFit N20 is available in three sizes to fit a wide range of users.
InfinitySeal cushion
AirFit's advanced InfinitySeal nasal cushion features specially-designed "infinity" loops with variable thickness levels, designed to prevent blowout. ResMed designed it to stay sealed at any airflow pressure setting. Three InfinitySeal sizes are available: Small, Medium and Large.
Soft, flexible frame
AirFit N20's frame flexes naturally to a custom fit on each user's face. With only minimal skin contact, the AirFit N20 provides a stable fit and an open field of view. Integrated padding within the frame adds softness, and the open view lets you read or watch TV in bed.
Headgear and magnetic clips
Plush N20 Headgear is engineered for extra softness and stability. The straps should be worn without overtightening, to allow the InfinitySeal cushion to adapt to your personal facial contours. On the lower straps, magnetic clips lead the headgear into the mask frame so it is quick and easy to put on and take off with a simple twist. AirFit N20 masks come with Standard headgear, and the Small and Large sizes are available on their own for a more custom fit.
Quick-release elbow
The AirFit N20 CPAP mask features a quick release elbow with squeeze-tabs so it's easy to detach with one hand if you need to get up during the night. The elbow connects to your tubing through a short tube with a swivel, and the vent is built into the elbow.
What's included
- AirFit N20 frame with InfinitySeal cushion in your size
- Quick-release elbow with short tube
- Standard headgear with two magnetic clips
- For Her Small: small cushion and smaller lavender headgear
Specifications
- Mask type
- Nasal, covers the nose
- Cushion
- InfinitySeal silicone
- Sizes
- Small, Medium, Large, plus For Her Small
- Headgear
- Standard size included, Small and Large sold separately
- Pressure range
- 4 to 30 cm H2O
- Sound level
- 24 dBA
- Dead space
- 103 mL (Large cushion)
- Elbow
- Quick-release, short tube with swivel
- Magnets
- Frame and lower headgear clips
- Machine setting
- Pillows (ResMed machines)
- Materials
- Not made with natural rubber latex or PVC
- Health Canada licence
- 98156 (Class II)
Features and fit
Sizing and seal checks
ResMed's printable fitting template, held under your nose, shows which of the three sizes suits you. Once it's on, check that:
- The size marking on the cushion faces down, at the bottom
- The lower corners wrap fully around the sides of your nose
- A leak near the top points to the upper straps, one lower down to the bottom pair
- You measured for this mask, since sizes don't always carry over
Plush headgear and strap tips
Soft, plush headgear holds the mask from the back of your head, and ResMed's guide notes this mask often needs less tightening than other nasal masks.
- The upper straps do most of the work for seal and comfort
- The lower straps mainly hold the cushion in place, so keep them snug rather than tight
- Every size ships with Standard headgear, and Small or Large headgear is sold separately
Hose swivel and vent
Roll over as often as you like: a swivel joins the mask's short tube to your hose, letting the hose turn with you. Your breath leaves through small vent holes on the elbow, which also keep fresh air moving through the mask.
- Keep the vent holes uncovered by pillows or bedding
- A soft brush during the daily wash keeps them clear
- The vent is part of the elbow, so there's no separate piece to fit
Cleaning and care
A few minutes of care keeps the parts that touch your face fresh, and all it takes is warm water with a mild liquid soap.
- Each morning: the cushion, elbow and short tube
- Once a week: the headgear and frame, with the clips left on
- Rinse well and air dry everything out of direct sunlight
- Skip ozone and UV cleaners, which ResMed says can discolour or damage the mask

InfinitySeal cushion
You can settle in without pulling the headgear tight, because the silicone cushion is designed to stay sealed at any pressure setting. Flexible loops and varied thickness keep it steady through the night.
Padded frame
Your glasses go on and the TV stays in view, since the soft frame rests below your eyes. Built-in padding and a flexible shape help it adapt to many different faces.
Magnetic clips
Two snaps and the mask is on, two more and it's off. Magnets guide the lower straps to the frame, which helps when your hands or eyesight make small clips fiddly.
Quick-release elbow
A trip out of bed doesn't mean refitting your mask. Press the elbow's side buttons to unhook from the hose, leave the mask on, and click back in when you return.
Common questions
How often should I replace the AirFit N20 cushion?
ResMed's schedule is monthly for the cushion, every three months for the frame system, and twice a year for the headgear. Swap a part early if the silicone yellows, stiffens or cracks, or if the straps stretch out.
Will the AirFit N20 work if I breathe through my mouth?
A nasal mask works best when your mouth stays closed at night. ResMed's own list of who the N20 suits names side sleepers, glasses wearers and people who watch TV in bed, not mouth breathers. If you wake with a dry mouth, a full face mask like the AirFit F20 may suit you better.
Which mask setting do I choose on my machine?
Choose Pillows. It looks odd for a nasal mask, but ResMed's user guide and compatibility list both give Pillows for the AirFit N20 on AirSense, AirCurve and S9 machines. On other brands, pick SWIFT, or MIRAGE if SWIFT isn't offered.
Is the AirFit N20 a good choice for side sleepers?
Side sleepers come first on ResMed's list of people this mask is designed for. The short tube ends in a swivel that lets the hose turn as you roll over, and if the mask shifts, the magnetic clips make it quick to settle again.
Should I choose the AirFit N20 or the AirTouch N20?
They're the same mask apart from the cushion. The AirFit N20 has silicone you wash each morning, while the AirTouch N20 has memory foam you replace monthly instead of soaking. The cushions swap between frames, so one mask lets you try both.
Do I need a prescription to buy this mask?
No. Masks don't need a prescription, so you can order this one straight away. We only ask for a prescription with CPAP machines and ventilators, before they ship.
Need help?
Between two sizes, or not sure which mask suits you? Call or chat with our team before you order.