The AirSense 11 Accessories Guide
You've started therapy on the AirSense 11 and something still feels off. Usually it's not the machine — it's the mask, the tubing or a filter that's overdue. Here's what each accessory does, which ones matter most, and how often to replace them.
Every accessory that works with the AirSense 11, which one is worth spending on, and the replacement schedule that keeps therapy working.
The Full Accessory List
Everything below is compatible with the AirSense 11. Note that the AirSense 11 uses different filters and tubing from the AirSense 10 — accessories from the older machine will not fit.
CPAP Mask
The single accessory that determines whether therapy works or not. Nasal, full face or nasal pillows, depending on how you breathe.
ClimateLineAir 11 Heated Tubing
Keeps the air warm along its whole length, preventing condensation in the hose. The main upgrade for comfort.
Replacement Filters
Standard or hypoallergenic. A clogged filter makes the motor work harder and shows up as increased noise.
Backup Battery
The Medistrom Pilot-24 Lite covers power cuts and off-grid travel. Requires the AirSense 11 cable kit.
HumidAir Water Chamber
A replacement tub for when scale build-up or cloudiness sets in — or a spare, so one can dry while the other is in use.
Power Cord and Adapter
A second set worth having if you travel regularly, so nothing gets left behind in a hotel room.
Travel Case
Included with every AirSense 11 we sell, whether as a complete bundle or a standalone machine.
Comfort Extras
CPAP pillows, gecko pads for the bridge of the nose, and noise-reduction accessories for light sleepers.
Is There One Accessory Worth Spending On?
Yes — the mask. It's the interface between you and the machine, and it's where almost every therapy problem originates. A mask that leaks, presses or doesn't match how you breathe will undermine treatment no matter how good the machine is.
The decision follows from one question: do you breathe through your nose, your mouth, or both? Nose breathers do best with a nasal or nasal pillows mask. Mouth breathers, and anyone who suffers frequent congestion, need a full face mask. Getting this wrong is the most common reason people abandon CPAP therapy in the first month.
After the mask, the accessories that make a practical difference are heated tubing, a clean filter, and a water chamber in good condition. Everything else is genuinely optional.
Best Masks for the AirSense 11
There's no universally best mask — face shape and sleeping position decide it. These five are the most widely used with the AirSense 11:
Nasal Masks
- AirFit N30i — tube routes over the top of the head, minimal frame, clear field of vision. Spring Air cushion sits under the nose. Good for active sleepers.
- AirFit N20 — traditional design with a soft InfinitySeal cushion and magnetic headgear clips. The reliable default for nose breathers.
Full Face Masks
- AirFit F30 — ultra-compact, sits under the nose rather than over the bridge. Leaves room for glasses and reading.
- AirFit F20 — fuller coverage with a flexible cushion and low-profile frame. Available with silicone or memory-foam cushions.
Nasal Pillows
- AirFit P30i — the most minimal option, with pillows at the nostril entrance and the tube routed over the head. Least contact with the face, quietest of the three types.
Choosing Between Them
- Move a lot in your sleep? Top-of-head tubing (N30i, P30i, F30i) stops the hose pulling.
- Read or watch TV in bed? Under-the-nose designs keep your view clear.
- Marks on the bridge of your nose? That's what nasal pillows and under-the-nose cushions solve.
Before you order: mask sizing is not the same across models — a medium in one range can be a small in another. Check the sizing guide for the specific model, and if you're between sizes or unsure, ask us before ordering rather than after.
Cleaning Supplies
Warm water and a mild soap solution handle most of it. Avoid abrasive or harsh cleaning agents — they degrade silicone and plastic faster than the dirt they remove.
- CPAP wipes — convenient for the daily wipe-down of the mask cushion, which is where facial oils accumulate.
- Mild detergent — for the weekly wash of tubing and water chamber. Dishwashing liquid works; anything scented or antibacterial does not.
- UV cleaning devices — the 3B Lumin uses UV-C light and processes a mask in around five minutes.
A note on ozone cleaners: some CPAP cleaning devices use ozone rather than UV light. Several manufacturers, ResMed included, state that ozone cleaning can void the device warranty — check your warranty terms before using one. UV-based devices such as the Lumin don't carry this issue.
Replacement Schedule
These are general guidelines. Adjust them to your environment — a dusty bedroom, pets or an open window all shorten the intervals.
Clean Regularly
- Mask cushion — wipe daily
- Water chamber — empty and wipe daily, refill with fresh water
- Tubing — wash weekly
- Headgear — wash weekly
Replace Periodically
- Air filter — inspect monthly, replace every 6 months or sooner if discoloured
- Mask cushion — every 1–3 months, depending on model
- Headgear — every 3–6 months, when it stretches
- Tubing — every 3–6 months
- Water chamber — every 6–12 months, or when cloudy
Frequently Asked Questions
Can I use my AirSense 10 accessories with the AirSense 11?
How often should I clean my CPAP mask?
How often do I replace the AirSense 11 filter?
Do I need heated tubing?
Is a UV cleaning device worth buying?
Which mask should I choose if I'm not sure?
Where to Start
If you're building out your AirSense 11 setup, spend your attention on the mask first and everything else second. A well-fitting mask with fresh cushions does more for therapy than every other accessory combined.
After that, the order is simple: keep a spare filter on hand, add heated tubing if you get condensation, and pick up a backup battery only if you travel off-grid. Everything else is comfort, not necessity.
Please note: accessory choice affects comfort and adherence, not your prescribed therapy settings. If your mask is causing pain, persistent marks or leaks you can't resolve, consult your provider — mask fitting is something they can assess directly. Replacement intervals above are general guidance; always follow the instructions supplied with your specific mask and machine.
