If you use a CPAP machine or you’re about to start therapy, the ResMed AirSense 10 is a name you’ll hear often. It’s one of the most widely prescribed and trusted CPAP devices on the market, known for being reliable, user-friendly, and packed with smart features that make nightly therapy feel less like a chore.
The AirSense 10 has earned its reputation for good reason. It delivers consistent, auto-adjusting air pressure to keep your airway open while you sleep, and it does so quietly enough that your partner probably won’t even notice it’s running. With built-in humidification, wireless data tracking, and an intuitive interface, it’s a machine that was clearly designed with the everyday user in mind.
But here’s the thing — getting the most out of your AirSense 10 means understanding what each part of the device actually does. Whether you need to replace a filter, troubleshoot a display issue, or simply want to know what that dial on the front is for, knowing your machine inside and out makes a real difference. That’s exactly what this guide is here to help you with.
ResMed AirSense 10 Parts Diagram & Details
The diagram above shows the ResMed AirSense 10 from three different angles, giving you a full picture of how the device is laid out. The top-right view displays the back and side of the machine, highlighting the air outlet port (labeled 1), the filter cover (labeled 2), the navigation buttons (labeled 3), and the SD card slot (labeled 4). At the bottom center, you can see the water chamber (labeled 5), which is shown detached from the main unit. The left-side view captures the front of the machine, pointing out the power connection point (labeled 6), the LCD display screen (labeled 7), and the control dial/knob (labeled 8).
Each of these eight components plays a specific role in how the AirSense 10 operates and delivers your therapy. Let’s break them down one by one so you know exactly what you’re looking at and how each part works.
1. Air Outlet
The air outlet is the circular port located at the rear of the AirSense 10, and it’s where your CPAP tubing connects to the machine. This is essentially the exit point for the pressurized air that travels through the hose, into your mask, and ultimately into your airway. Without a secure connection here, your therapy pressure would leak out and your treatment would be far less effective.
You’ll want to make sure your tubing fits snugly into this port every night before you go to sleep. A loose connection is one of the most common causes of air leaks, which can trigger that annoying mask alert and reduce the quality of your therapy. Most standard CPAP hoses, including the ResMed SlimLine and ClimateLineAir heated tubing, are designed to click right into this outlet with minimal effort.
Over time, it’s worth checking this area for any signs of wear or cracking. If the seal between the hose and the outlet starts to degrade, you may notice more noise from the machine or a drop in pressure delivery, both of which are signals to inspect and potentially replace the tubing.
2. Filter Cover
Sitting right next to the air outlet on the back of the machine, the filter cover is a small panel that protects the device’s air intake filter. It snaps on and off easily, giving you quick access to the filter underneath whenever it’s time for a check or a swap.
The filter itself is your machine’s first line of defense against dust, pollen, pet dander, and other airborne particles. The AirSense 10 uses two types: a reusable grey foam filter and a disposable white hypoallergenic filter. The foam filter catches larger particles and can be washed and reused, while the hypoallergenic filter traps finer allergens and should be replaced regularly, roughly every 30 days depending on your environment.
Keeping up with filter maintenance directly affects the quality of air you’re breathing all night. A clogged or dirty filter forces the motor to work harder, which can increase noise levels and reduce the lifespan of your machine. Pop off this cover once a week to take a quick look — it takes about ten seconds and saves you potential headaches down the line.
3. Navigation Buttons
Along the lower front edge of the AirSense 10, you’ll find a set of small navigation buttons. These physical buttons let you cycle through the device’s on-screen menu, adjust settings, and confirm selections without having to rely solely on the main dial.
These buttons work in tandem with the LCD screen to give you access to your therapy data, comfort settings, humidity levels, and pressure details. For most day-to-day use, you’ll find yourself using them to scroll through your sleep reports each morning, check your AHI (Apnea-Hypopnea Index) score, or make minor setting adjustments based on how the previous night felt.
The placement along the bottom edge keeps them out of the way during sleep, so there’s very little chance of accidentally pressing one in the middle of the night. They’re responsive without being overly sensitive, which is a thoughtful design choice for a device that sits on your bedside table in the dark.
4. SD Card Slot
Tucked into the side or lower portion of the device, the SD card slot houses a standard SD data card that records your therapy data every time you use the machine. This small slot is easy to miss, but the card inside it plays a surprisingly big role in your CPAP experience.
Your sleep data — including usage hours, leak rates, AHI events, and pressure changes — gets logged onto this card automatically. If your sleep specialist or equipment provider needs a detailed look at how your therapy is going, this card is often what they’ll ask for. It provides a comprehensive, night-by-night record that goes well beyond what the on-screen display can show you.
5. Water Chamber
The water chamber is the detachable reservoir that slides into the left side of the AirSense 10, and it’s the heart of the machine’s built-in humidification system. Filling this chamber with distilled water before bed allows the device to add moisture to the air you breathe, preventing that dry, scratchy throat feeling that many CPAP users experience without humidification.
ResMed designed this chamber to be easy to remove, fill, and reattach. A simple latch mechanism holds it securely in place during use, yet it pulls out smoothly when you need to refill or clean it. The maximum fill line is clearly marked on the side, so you won’t accidentally overfill and end up with water in your tubing — a phenomenon affectionately known as “rainout” in CPAP circles.
Daily cleaning is important here. Empty any leftover water each morning, give the chamber a rinse with warm water and mild soap, and let it air dry. Mineral buildup from tap water can cause discoloration and eventually damage the chamber, which is why distilled water is always recommended. Replacing the chamber itself every six months or so keeps everything functioning at its best.
6. Power Connection
At the base of the AirSense 10, you’ll find the power connection point where the AC power cord plugs into the device. This is a straightforward but essential component — without a solid power connection, your machine simply won’t run.
The power supply unit that comes with the AirSense 10 converts your home’s AC electricity into the specific voltage the machine needs. It’s worth noting that the power supply is designed for use with the AirSense 10 specifically, so using a third-party adapter isn’t recommended and could void your warranty or damage the device. If you travel frequently, ResMed offers a compatible DC converter for use in cars, RVs, and other 12V environments.
7. LCD Display Screen
The LCD screen is the large, front-facing display that serves as your main window into how the AirSense 10 is performing. It lights up with a soft glow when you interact with the machine, showing you everything from your current pressure setting to your nightly therapy stats.
Each morning, a quick glance at this screen gives you a snapshot of the previous night’s sleep. You can view your total hours of use, your mask fit score (which tells you how much air leaked during the night), and your AHI score, the number of apnea and hypopnea events you experienced per hour. Seeing these numbers trend in the right direction over time can be genuinely motivating.
Beyond daily stats, the display also lets you access the settings menu, where you can adjust ramp time, humidity level, and other comfort features. The screen’s brightness automatically dims during use to avoid lighting up your bedroom, a small detail that shows ResMed thought carefully about the user experience. If you’ve ever been kept awake by a bright device display in a dark room, you’ll appreciate this touch.
8. Control Dial/Knob
Sitting prominently on the front panel near the display, the control dial is the primary way you interact with the AirSense 10’s menu system. It’s a satisfying, tactile knob that you can rotate to scroll through options and press inward to confirm a selection.
This dial makes changing settings feel intuitive, even if you’re not particularly tech-savvy. Need to bump up your humidity level? Give the dial a few turns and a click. Want to check last night’s sleep data? Same process. The physical feedback from turning and clicking the knob gives you a sense of control that touchscreen-only devices sometimes lack, especially when you’re half-asleep and reaching for your machine in the dark.
What’s particularly nice about this design is how it simplifies the entire user interface. Rather than dealing with multiple buttons for different functions, the single dial handles most of the interaction. Paired with the LCD screen, it creates a clean, straightforward experience that even first-time CPAP users can pick up within a night or two of use.
