A look at the features and options related to one of the most advanced auto-adjusting CPAP machines on the market
Auto-adjusting CPAP machines offer a more personalized treatment option than standard fixed-pressure therapy. They deliver variable pressure throughout the night to match your breathing patterns and keep your airway open with the least amount of pressure needed.
For patients newly diagnosed with obstructive sleep apnea (OSA) or those looking to upgrade from older machines, choosing the right auto-CPAP can make all the difference between restful nights and ongoing struggles with therapy compliance.
The investment required for the machine itself, replacement parts, and accessories makes selecting a reliable option that meets your specific needs important.
This review will give you an in-depth look at the essential features and considerations of the ResMed AirSense 11 AutoSet—helping you determine whether it’s the right fit for your sleep apnea therapy needs.
AirSense 11 CPAP Machine Size and Design
The ResMed AirSense 11 AutoSet maintains a compact footprint that fits comfortably on most nightstands. The complete system measures approximately 26cm long, 9.4cm wide, and 13.8cm tall when the integrated humidifier is attached.
Weighing approximately 1.13kg with the humidifier, it’s light enough to move around your bedroom or bring along when traveling without weighing down your bags.
This combination of manageable weight and streamlined design will easily accommodate most sleeping arrangements, whether positioned on a bedside table, headboard shelf, or nearby furniture.
The sleek, modern aesthetic features clean lines and a minimalist appearance that will look nice in any bedroom and not immediately stand out as a medical device.
ResMed AirSense 11 CPAP Machine Performance
Despite its compact size, the AirSense 11 AutoSet can accommodate a wide range of pressure prescriptions, with auto-adjusting settings ranging from 4cm H₂O to 20cm H₂O.
This pressure range works well whether you need lower pressures throughout the night or higher pressures when sleeping in certain positions, and it’s especially helpful if you’re still finding your optimal pressure range.
The machine runs whisper-quiet at about 27 decibels, quieter than a soft conversation or rustling leaves. This near-silent operation helps ensure that both you and your sleeping partner can rest without disruption.
As an AutoSet (auto-adjusting CPAP) device, this machine continuously monitors your breathing and adjusts pressure in real time. When it detects an apnea event or flow limitation, it increases pressure just enough to keep your airway open. This creates a more comfortable breathing experience compared to fixed-pressure CPAP, particularly for patients who find higher continuous pressures difficult to tolerate.
Included CPAP Machine Parts and Accessories
The ResMed AirSense 11 AutoSet package includes:
- AirSense 11 machine
- Standard water chamber
- Climate Line Air 11 heated Tubing
- Power supply and power cord
- Travel bag for portability
- 1 disposable air filter (pre-installed)
- User manual
Optional accessories available for purchase separately include:
- Additional replacement filters
- Various CPAP masks compatible with the system (nasal, nasal pillow, full-face)
- Humidifier Cap
For most users, this comprehensive package means you’ll only need to select and pair the machine with your preferred CPAP mask before beginning therapy.
Key Features of the ResMed AirSense 11 AutoSet
The AirSense 11 AutoSet includes all the essential features you’d expect from a modern auto-CPAP machine. The real difference comes from the thoughtful extras that make nightly therapy easier to stick with over the long haul.
Auto-Adjusting Pressure with AutoSet Algorithm
The AutoSet algorithm is the heart of this machine. It continuously monitors your breathing patterns and adjusts pressure breath by breath to deliver the minimum pressure needed to keep your airway open.
This means you’re not stuck with one fixed pressure all night. If you roll onto your back (which often requires higher pressure), the machine responds. If you’re sleeping on your side and need less pressure, it adjusts down. If you’re congested one night, it compensates.
For new users, this removes a lot of guesswork during the adjustment period. You don’t need to worry about whether your pressure is “right.” The machine does that work for you.
For existing users upgrading from fixed-pressure CPAP, the auto-adjusting feature often feels more natural and comfortable, especially if you’ve struggled with tolerating higher pressures all night long.
Integrated Heated Humidification
Nasal dryness is one of the most common side effects when starting CPAP therapy. The AirSense 11 includes a built-in heated humidifier with an easy-to-fill water tank. You can adjust the humidity level from 1 to 8 to match your comfort, which helps reduce dryness, congestion, and irritation.
The heated humidifier works alongside ClimateLineAir heated tubing to prevent condensation buildup in the hose, often called “rainout.” This keeps therapy more comfortable, especially in colder climates or air-conditioned rooms.
The AirSense 11’s integrated design means one less piece of equipment to manage.
Intuitive Touchscreen Display
The color touchscreen on the front of the machine keeps things simple. There are no complicated menus or confusing buttons to navigate. Tap the screen to access settings, view therapy data, or adjust humidity levels.
The display is easy to read and responsive, making it accessible even for users who aren’t particularly tech-savvy.
AutoRamp and Ramp Technology
Falling asleep with full pressure blowing into your mask can be tough, especially when you’re first starting therapy. The AirSense 11 AutoSet offers two ramp options to ease you into therapy:
- Standard Ramp gradually increases pressure from a lower starting point to your prescribed level over a set time period (adjustable from 5 to 45 minutes), giving you time to fall asleep comfortably.
- AutoRamp takes a smarter approach. It keeps the pressure lower while you’re falling asleep and only increases when it detects you need it.
Both options make it easier to drift off without feeling like you’re fighting the machine.
Expiratory Pressure Relief (EPR)
EPR lowers pressure slightly when you exhale, making breathing feel more natural. You can adjust the relief level from 1 to 3 (or turn it off) to find what feels most comfortable.
This feature is particularly helpful for people who find exhaling against continuous pressure uncomfortable or unnatural.
myAir App Connectivity
The machine includes built-in Bluetooth and cellular connectivity that links to the free myAir app (iOS and Android). The app tracks your therapy data and displays it in an easy-to-understand format:
- Hours used each night
- AHI (apnea-hypopnea index)
- Mask seal quality
- Events per hour
- 30-day compliance tracking
Each morning, you receive a therapy score and personalized coaching tips. This helps you stay on track for insurance compliance requirements (typically 4+ hours per night for at least 21 nights over 30 days).
The app also allows your healthcare provider to monitor your therapy remotely, which can be helpful if you’re troubleshooting issues or adjusting to treatment.
Climate Control and Heated Tubing Compatibility
When paired with the optional ClimateLineAir heated tubing, the AirSense 11 automatically adjusts temperature and moisture levels to maintain consistent comfort throughout the night.
The Climate Control Auto mode monitors room temperature and adjusts settings dynamically, so you don’t wake up to a cold or too-warm mask.
Auto On/Off and Convenience Features
The machine includes several smart features that eliminate fumbling with buttons:
- Auto Start begins delivering pressure as soon as you take your first breath through the mask. There’s no need to press a button once you’re settled in bed.
- Auto Stop turns off therapy automatically when you remove your mask, whether you wake up during the night or in the morning.
- Auto altitude adjustment compensates for changes in elevation, helpful if you travel or live at higher altitudes.
These features make the machine feel less like a medical device and more like something that works quietly in the background.
Advanced Event Detection
It can detect several types of breathing issues, including obstructive sleep apnea, hypopnea, flow limitations, snoring, and RERAs (respiratory effort-related arousals).
When it spots a problem, it adjusts pressure within seconds to clear the obstruction before it disrupts your sleep.
This behind-the-scenes monitoring means you’re less likely to wake up from apnea events or pressure issues.
Considerations for the AirSense 11 AutoSet
While the AirSense 11 AutoSet delivers on performance and features, there are a few things worth knowing before you buy:
Requires a Prescription
Like all CPAP and auto-adjusting PAP machines, the AirSense 11 is a Health Canada-regulated Class II medical device. You need a valid prescription from a licensed Canadian healthcare provider before you can purchase it. This is a legal requirement, not just a store policy.
If you don’t have a prescription yet, you’ll need to consult your family doctor or sleep specialist, complete a sleep study, and receive a formal diagnosis and prescription before moving forward.
Humidifier Adds Maintenance
The built-in humidifier is a benefit for comfort, but it does require regular maintenance. You’ll need to:
- Refill the water tank daily with distilled water (to prevent mineral buildup)
- Clean the reservoir weekly
- Replace the chamber periodically (every 6–12 months depending on use)
For some users, this extra step feels like a hassle. If you prefer minimal maintenance, you can run the machine without water in the humidifier chamber, though you may experience more dryness.
App Requires Connectivity
The myAir app is a major feature, but it requires the machine to connect via Bluetooth (to your phone) or cellular (to ResMed’s servers). If you live in an area with poor cellular coverage or prefer not to use connected devices, this feature becomes less useful.
You can still use the machine without the app, but you lose access to detailed therapy data and remote monitoring.
AutoSet CPAP Machines May Not Suit Everyone
While auto-adjusting pressure works well for most, some people prefer the consistency of a steady flow. If you find variable pressure changes distracting or if you have been prescribed a specific setting, the AirSense 11 AutoSet can easily be adjusted to a fixed-pressure mode. This allows you to benefit from the machine’s advanced hardware while maintaining the exact breathing experience that works best for you.
Not Ideal for Central Sleep Apnea or Complex Cases
The AirSense 11 AutoSet is designed for obstructive sleep apnea (OSA), which is the most common type. If you’ve been diagnosed with central sleep apnea (CSA) or require bi-level therapy (BiPAP), this machine isn’t appropriate. Your sleep specialist will prescribe a different device type for those conditions.
ResMed AirSense 11 Warranty
The ResMed AirSense 11 AutoSet includes a three-year full manufacturer replacement warranty on the machine itself. Included accessories like tubing and filters are covered for the initial purchase period.
ResMed offers solid support resources, including an online knowledge base with troubleshooting information, answers to common questions, and toll-free support lines if you run into issues. Your CPAP supply provider can also help with setup questions and maintenance advice.
Overall Thoughts
The ResMed AirSense 11 AutoSet is a solid choice if you need auto-adjusting CPAP therapy. It combines thoughtful comfort features with reliable performance in a package that’s quieter and easier to use than many CPAP machines on the market.
Features like AutoSet pressure adjustment, AutoRamp, EPR, and Climate Control work quietly in the background to make therapy more comfortable and effective. The myAir app connectivity makes tracking your progress simple, while the intuitive controls mean you won’t need to dig through complicated menus in the middle of the night.
Whether you’re new to CPAP therapy or upgrading from an older machine, the AirSense 11 offers the advanced features and auto-adjusting pressure delivery you need without feeling overly complicated or clinical.
It may not be the right choice if you prefer fixed-pressure CPAP or if you’ve been prescribed bi-level therapy. But for those who need auto-adjusting pressure for obstructive sleep apnea, this machine balances sophisticated technology with practical, everyday usability. This makes it easier to stick with therapy night after night.
Choosing Between Machine Only and Machine + Mask Bundle
We offer the ResMed AirSense 11 AutoSet in two configurations:
- Machine only – Includes everything listed above (machine, humidifier, tubing, filter, travel bag). Ideal if you already have a CPAP mask that fits well.
- Machine + mask bundle – Includes the machine plus a compatible CPAP mask. A good option if you’re starting therapy from scratch or want the convenience of a complete setup.
If you’re unsure which mask type works best for your needs (nasal, nasal pillow, or full-face), our team can help you choose based on your sleep position, breathing patterns, and comfort preferences. You can also take our Mask Quiz to get a personalized recommendation in just a few clicks, or explore our full range of CPAP masks to see all the available options.
CPAP Supply is Canada’s leading online CPAP supply store in customer satisfaction. Our selection of the latest auto-CPAP machines ensures you’ll find reliable performance and advanced features at competitive prices. Contact us today to discuss whether the ResMed AirSense 11 AutoSet is right for your needs, or explore the other options in our catalog.
