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With its sleek contours and a compact size the dramatically different S9 AUTOSET Auto-CPAP System from ResMed makes sleep therapy truly user-friendly for the first time. The S9's stylish brushed silver and black exterior features a large color display with four clearly marked buttons that make adjustments and therapy tracking easier than ever. But don't let the S9's good looks fool you its real power lies beneath the surface...

Enhanced AutoSet - All Auto-CPAP (APAP) systems adjust your overall therapy levels to ensure you're receiving the optimal pressure for successful sleep therapy. The S9 AutoSet combines an intelligent algorithm with Easy-Breathe expiratory pressure relief (EPR™) to dynamically adjust pressure for maximum comfort. It continually monitors breathing, adapting breath by breath, to deliver the lowest therapeutic pressure, improving comfort and sleep. In addition the S9’s enhanced AutoSet algorithm takes this a step further, differentiating between obstructive (OSA) and central sleep apneas (CSA) and responding appropriately to each. So whether you're experiencing OSA or CSA you can be confident that you're always receiving optimal therapy at the lowest, most comfortable pressures.

S9 CPAP EASY-BREATHE MOTORQuietly Capable Easy-Breathe Motor - APAP systems create two types of noise: radiated noise in the room, and conducted noise through the tube. The S9's Easy-Breathe motor with axial air-flow produces less "turbulence" lowering average radiated sound levels to just 24dBA. In addition ResMed has reduced conducted noise levels through the breathing tube by 78%. When fully operational the S9 series is no louder than normal breathing!

Easy-Breathe EPR - ResMed has updated the clinically proven Easy-Breathe EPR waveform. Breath by breath, Easy-Breathe EPR reduces the work of breathing during exhalation providing a gentler pressure that naturally adapts to your breathing cycle throughout the night.

S9 CPAP SLIMLINE TUBINGChoose Your Tubing: ClimateLine vs SlimLine - An often overlooked but vitally important element in sleep therapy is the tubing! Tubing designs have remained relatively unchanged for 20-years until now. With the S9 ResMed introduces two great tubing options. SLIMLINE tubing is the lightest, slimmest and most flexible CPAP tube on the market. 40% lighter than traditional tubing, SlimLine tubing eliminates drag on your mask and weight on your bed helping to improve overall fit and sleep comfort. SlimLine tubing also features a smart-fit cuff design that makes it easier to attach and remove the tubing from your machine and mask.

If you choose the H5i Heated Humidifier with your S9 system then you can select CLIMATELINE heated tubing for truly exceptional comfort. The ClimateLine tube features a temperature sensor at the mask end of the tube. You set your preferred humidity and optimum temperature levels and the S9 Climate Control system adjusts your therapy to suit. Because the system measures temperature at the mask, the temperature you feel will remain at your preferred setting, regardless of changes in ambient temperature or humidity. ClimateLine heated tubing offers increased flexibility, more sleeping comfort, less mask drag and prevents rainout without reducing humidity.

S9 CPAP H5i HUMIDIFIEREnhanced H5i Humidifier (Optional) - A great sleep therapy system deserves a great humidifier. The H5i Humidifier with Climate Control is just that. The H5i heated humidifier offers relief from dryness and congestion and integrates seamlessly with the S9. Intuitive and easy to use, the S9's settings screen you can adjust humidity levels at any time during therapy. The H5i's adaptive Climate Control system intelligently adjusts to your environmental conditions and delivers optimal temperature and humidity right to the mask. It protects you from rainout without compromising humidity and provides the most comfortable therapy possible.

S9 CPAP SCREEN SETUPMask-Fit Made Easy - The S9's Mask-Fit feature is simple and effective. It offers three settings: Nasal, Pillow and Full Face. With the touch of a button you select your mask style and then the Mask-Fit system will run a quick diagnostic to ensure your mask is sealing properly. If your mask needs adjustment the system will alert you so that you can correct any fitting problems you may have prior to starting therapy.

Data Rich - The S9 allows you to view a snapshot of your sleep therapy directly on the device. Designed to provide daily feedback and encouragement, the Sleep Quality Indicator identifies usage, leak and AHI information. In addition the Sleep Report offers compliance and therapy data for up to 365 days. Data available includes average usage, used hours, days used, run hours and pressure. The S9 also ships with an SD Card inserted in the device that can be used by your doctor to review more advanced information. The SD Card provides detailed graphical data and high resolution flow data. It stores 365 days of therapy and compliance data, 30 days of detailed data, and 7 days of high resolution flow data.


  • Compact size offers exceptional treatment in an unobtrusive, user device -- great for home, great for travel!
  • Choice of fixed CPAP or Auto-CPAP; Both with Customizable EPR (Expiratory Pressure Relief)
  • Whisper-quiet operation (Less than 24 dBA average)
  • Wide pressure range (4 to 20 cm H20) and adjustable ramp (0 to 45 min) allow you to fall asleep at a lower pressure
  • Intelligent Tubing Options - In addition to Standard tubing the S9 Series can use ResMed's exclusive SlimLine and ClimateLine Tubing.
  • EPR & Easy-Breathe provide greater comfort than standard CPAP Systems and reduce leak levels
  • SD Data Card offers Comprehensive efficacy and compliance data
  • SmartStart - Starts the flow of air after breathing into the mask and stops the flow of air when the mask is removed
  • Automatic Leak Detection adjusts to leaks to ensure that the correct pressure is always delivered
  • Automatic Altitude Adjustment
  • Mask Off Detection alerts user to excessive leaks or mask removal
  • Universal Power Supply - Automatic voltage regulator and international power supply for operation on AC currents from 110 to 240 without adjustments. (Plug adapter may be needed for operation outside of the United States.)

Manufacturer: ResMed
Part Number(s): 36005, 36015, 36025
In the Box: S9 AutoSet Auto-CPAP, Travel Bag, Starter Filter, 2-Meter Breathing Tube, SD Data Card, Printed Users Manual, Universal 90W Power Supply with Cord, 2-Year Manufacturer's Warranty. Select Additional Tubing, Power & Humidification Options in Cart.
HCPCS Insurance Code(s): E0601

Dimensions & Weight (Approximate)
  • APAP Machine: 6.0” x 5.5” x 3.4” (153 mm x 140 mm x 86 mm)
  • APAP Machine: 1.8 lb (810 g)
  • APAP with Humidifier: 6.0” x 11.5” x 3.4” (153 mm x 292 mm x 86 mm)
  • APAP with Humidifier: 3.5 lb (1590 g)
  • Power Supply: 6.5 x 2.5 x 1.5 inches, 1.25lbs.
Performance & Power
  • Pressure Range: 4cm to 20cm H20 (.2cm increments)
  • Operating Modes: CPAP, APAP
  • Ramp Time: 0 to 45 minutes (5-min increments)
  • Ramp Start Pressure: 4 to APAP/CPAP Pressure
  • Altitude Compensation: Automatic up to 8500-Feet
  • Automatic Leak Compensation: Yes
  • Auto On/Off: Yes
  • Universal Power Supply: Input Range 100-240 V, 50-60 Hz
  • Warranty: 2-Year Manufacturer's Warranty (APAP), 2-Year Manufacturer's Warranty (Humidifier)
  • Sound Levels: Less than 24 dBA at 10cm H2O
  • Flex / EPR Technologies: EPR with Easy-Breathe
FAA Approved
  • Approved by the FAA for use on all commercial flights within the US and all international flights that depart or arrive in the US.
  • ResMed confirms that the S9 Series meets the Federal Aviation Administration (FAA) requirements (RTCA/DO-160F) for all phases of air travel. Each S9 Series CPAP/BiLevel Machine includes FAA Approval information, in raised lettering, on the base of the machine for easy identification.
  • Always contact your airline prior to your flight to confirm any requirements they may have -- such as a copy of your prescription and/or a letter of medical necessity -- for allowing your CPAP/BiLevel on board.
Data Capabilities
  • On Screen Data Review: Daily Feedback Sleep Quality Indicator identifies usage, leak and AHI information. Sleep Report offers summary compliance and therapy data for up to 365 days. Data available includes average usage, used hours, days used, run hours and pressure.
  • SD Data Card Storage: 365 days of therapy and compliance data (summary and statistics). 30 days of detailed data (graphs). 7 days of high resolution flow data. Data includes... Usage, SpO2, Snore, Pulse Rate, Pressure, Minute Ventilation, Leak, Flow, Flow Limitation, Events, OAI/UAI, AHI/AI/CAI

Customer Reviews

View All 11 Product Reviews. Click Here To Write A Review Of Your Own!

I love this machine
5 out of 55 out of 55 out of 55 out of 55 out of 5
I have been on CPAP for 6 years. I was never comfortable with knowing what was happening while I slept with my first machine. I love that I can look at how many hours I used the machine and the quality of my use. I also like that I can send in my card so my doctor can get a report. I was not able to use the humidifier on my old machine because of the rainout. Now I have the heated tubing and that helps tremendously with reducing the water in the tube and I don't get so dry at night.
By Suzanne, Greenville, SC

4 out of 54 out of 54 out of 54 out of 54 out of 5
Amazing machine. Adjusts pressure as needed during the night. Only drawback is the machine makes a discernible noise when you exhale.
By Edward T, Detroit

S9 AutoSet™
3 out of 53 out of 53 out of 53 out of 53 out of 5
The cpap machine is quiet but it produces a whistling noise that is extremely annoying.
By ADF, Port Charlotte

peace again
5 out of 55 out of 55 out of 55 out of 55 out of 5
I am a 02 retainer. This machine is a life saver for me and I would tell anyone to go for it. Its quiet as can be, although I did have some problems with air noises at night because of movement and I found that a elastic head band put over the back of my head and wrapped just over the hose held the mask tight. With no discomfort to me.
By Rhonda H., watertown

S9 AutoSet™ Auto-CPAP Machine
5 out of 55 out of 55 out of 55 out of 55 out of 5
This is them first time I have used this make of C-Pap machine, I have only used it for less than a week and so far it appears to be working very well. I have had mostly Resperonics machines in the past 20 years and have had minor problems with all of them. I followed the reviews on the S9 AutoSet™ Auto-CPAP Machine and most were very good, so I decided to give it a try and am very pleased to date.
By David,

ResMed S9 AutoPap
2 out of 52 out of 52 out of 52 out of 52 out of 5
I got this machine through a medical provider. I liked the low profile and the auto adjusting feature, but could never get used to the weird moaning sound it makes on exhalation. If you are sensitive to random sounds, this machine will NOT work for you. Unfortunately, I just had to go back to my old F&P Cpap, which is bulkier, but still quieter than this newer and more high tech machine.
By Judy, Indiana

S9 AutoSet
5 out of 55 out of 55 out of 55 out of 55 out of 5
I really like this machine because of it's smooth opperation. The CPAP experience is GREAT with the S9 AutoSet, with features such as the ClimateLine hose and heated humidifier. It's also a very pretty machine and doesn't shout out MEDICAL DEVICE! With it's curves and sleek design, it adds a bit of decor to your nightstand.
By Trish, Owensville

excellent service
5 out of 55 out of 55 out of 55 out of 55 out of 5
Called to confirm order and was given great advice. Settings were made without asking. Great Service.
By dp, California

very satisfied thus far
5 out of 55 out of 55 out of 55 out of 55 out of 5
After many years using an S7 from Res-Med, i got the S9 about a month ago. It is great. I have not experienced any noise on exhalation as others have reported. In contrast to the S7, the tubing comes off the back of the machine. Not a big issue, except it adds to the amount of space needed if kept on a night table. I keep mine on the floor, so the problem there is that i would have to turn it backwards to optimize the tube length to the bed. Since i like to have the display and on/off button facing the bed, it effectively shortens the tubing. I am using the heated tubing and it works well. I like the fact that I can vary the temperature. The humidifier is easy to clean since the top comes off. It seems like the capacity is much smaller as I have to refill it more often. All in all the issues are small potatoes; the unit is great and I am very satisfied with it. Highly recommended.
By rpw, atlanta, ga

S9 AutoSet was worth every penny!
5 out of 55 out of 55 out of 55 out of 55 out of 5
I had a ResMed S8 previously. It was a little too noisy and kept my wife awake which left me in the guest room. The ResMed S9 is so quiet sometimes I'm not sure it is on. The guest room is now left for guests. Love it. Nice humidifier, too. I'm using it with the ClimateLine tubing and the Mirage Quattro face mask.
By George, Pennsylvania

View All 11 Product Reviews. Click Here To Write A Review Of Your Own!