The ResMed AirSense 11 delivers peaceful, whisper-quiet therapy at just 27 decibels. Sound levels can be affected by your mask fit and hose connection, but with proper setup, most users find their bed partners don't even notice it running. For the quietest experience, we recommend ensuring your mask fits properly and checking that your humidifier and hose is securely connected.

Yes, the AirSense 11 AutoSet CPAP senses your breathing patterns and adjusts therapy pressure throughout the night. It offers three therapy modes to match your needs:

1. AutoSet: Automatically responds to sleep events, providing exactly the pressure you need.
2. AutoSet for Her: Designed specifically for women, featuring more gradual pressure changes.
3. CPAP: Maintains one consistent pressure level throughout the night.
   

Your comfort comes first, with features like AutoRamp™ that starts at a lower pressure until you fall asleep, and EPR™ that makes breathing out more natural by lowering pressure when you exhale.

If you're sensitive to pressure changes, AutoSet Response lets you choose gentler adjustments. Monitor how your device adapts to your needs using the myAir™ app.

Learn more about APAP vs CPAP therapy.

Upgrading to a heated hose can help provide a more consistent therapy experience regardless of seasonal changes or location. If you find yourself traveling to a different climate, a heated hose can help you maintain the same therapy you had at home.

If you experience the collection of condensation in your CPAP hose that drips down onto your face and wakes you up, also known as CPAP rainout, a heated hose can help prevent condensation buildup, allowing you to sleep through the night.

With a ClimateLineAir 11 Heated Tube, you’ll also be able to utilize the AirSense 11’s auto climate control settings, which automatically detect the ambient room temperature and supply the optimal humidification for your sleep setting.

You may want one if you:

- Experience dry mouth or throat
- Notice water droplets in your tube
- Use humidification regularly
- Live in a cold or dry climate

You might not need one if you:

- Live in a humid climate
- Don't use the humidifier
- Keep your bedroom warm
- Are comfortable with your current setup

Many of our customers find the heated hose adds noticeable comfort to their therapy, particularly in winter. If cost is a concern, a CPAP hose cover provides similar benefits at a lower price point.

To change the filter on your AirSense 11 CPAP machine, follow these steps:

1. Turn off your machine and disconnect it from its power source.
2. Locate the filter compartment on the back of the machine.
3. When looking at the rear of your AirSense 11, the filter compartment will be on the lower right-hand side opposite the humidifier chamber.
4. Open the compartment and remove the old filter.
5. Insert the new filter and close the compartment.
6. Reconnect your machine to its power source.

The AirSense 11 air filter has a different design and is not interchangeable with the AirSense 10 filter.

Yes, the ResMed AirSense 11 works with any CPAP mask using the standard 22mm connection, regardless of brand. For optimal performance and full feature access, we recommend using our curated selection of ResMed AirSense 11 Masks.

Important notes:

• All standard CPAP masks will connect and function
• ResMed masks maximize device features and performance
• Some features (like SmartStop) work best with specific masks
• Magnetic masks require precautions for users with medical implants

For complete mask compatibility details, see ResMed's official list.

While ResMed masks offer enhanced features, we encourage you to explore different options to find your perfect match. With our 30-day risk-free trials, you can discover which mask gives you the most comfortable, restful sleep—regardless of brand.

The main difference between the AirTouch N20 and AirFit N20 masks is the cushion material. Both masks have identical frames and headgear, allowing for easy swapping between cushions based on your needs and preferences. The AirTouch N20 features a memory foam cushion, making it ideal for those with sensitive skin, facial hair, or a dislike for the feel of silicone. However, memory foam cushions are less durable, cannot be cleaned with soap and water, and should be wiped down daily with a CPAP mask wipe, requiring replacement monthly. In contrast, the AirFit N20 uses a silicone cushion that is more supportive and durable, better suited for active sleepers, and can be cleaned daily with soap and water, typically lasting between 3 and 6 months.

Replacing your AirFit N20 Cushion can be done in just a few steps. First, push the side buttons on the frame and pull the elbow away, then unclip the magnets and undo the upper headgear tabs. Pull the strapping away from the frame and hold the frame between the upper and lower arms—at this point, you’ll be able to pull the cushion away from the frame with ease.

Your AirFit N20 cushion should be changed every three to six months, unless you notice visible wear and tear or other physical damage to the product and then the cushion should be replaced immediately to ensure a secure mask seal and successful CPAP therapy. If you want to bundle and save money, purchase the ResMed AirFit N20 Mask + Five Replacement Cushions Bundle, so you won’t have to worry about ordering additional cushions in a pinch.

Yes, you can use the AirTouch N20 Cushion with an AirTouch N20 Mask and an AirFit N20 mask—whichever you prefer!

Handwash your AirFit N20 mask cushion with warm water and a gentle soap, such as the Purdoux CPAP Mask and Hose Soap, every morning after use to maintain a consistent seal and prevent cushion deterioration. Never use bleach, alcohol, scented oils, moisturizing soaps, or other harsh chemical cleaners to clean your CPAP equipment, as they can be harmful to your health, make your equipment degrade more quickly, or cause your mask seal to become unreliable.

The main differences between the “Standard” and “For Her” options are that the Standard headgear is available in sizes Small, Medium, and Large in the color blue, while the For Her headgear is only available in the size Small in the color violet.

You’ll know it’s time to replace your AirFit N20 mask cushion if:

• The cushion no longer easily clicks into the mask frame or falls out easily
• The cushion does not seal reliably
• The cushion isn’t comfortable for you anymore
• The cushion shows visible signs of deterioration

Replacement cushions for your AirFit N20 mask are available in Small, Medium, or Large. The N20 only has one frame size, meaning all three cushion sizes are compatible with the N20 mask frame.

If you struggle to get a consistent seal or notice more acne breakouts around your nose after using the AirFit N20, we recommend trying a padded nasal CPAP mask liner, such as RemZzzs Padded Nasal Mask Liners or Silent Night Nasal CPAP Mask Liners. Mask liners can be highly beneficial for solving a leaky seal once and for all, reducing facial irritation and acne breakouts, and adding more padding to reduce or eliminate red mask marks on your face after waking up.