The AutoSet series of Automatic Positive Airway Pressure (APAP) machines have long been designed to maximize comfort while providing minimal therapy pressures at the optimal moment. ResMed builds upon the AutoSet Advantage algorithm and incorporates EPR with Easy-Breathe technology in a new post modern shell. The S9 Series aesthetics are a complete redesign with new features:

Key Product Features


• Intuitive Design
• Mask-Fit System
• Optional Climate Control Heated Humidifier
• SlimLine or (Optional) ClimateLine Tubing
• AutoSet with Easy-Breathe Technology
• Forced Oscillation Technique (FOT)
• Expiratory Pressure Relief (EPR)
• 24dBA Sound Level
• Smart Start / Smart Stop
• On-Display Advanced Data Reporting
• Optional SkinIt Cover

Mask-Fit System

ResMed has incorporated a simple and effective tool for help with proper mask fitting. The Mask-Fit system allows users to preset a mask type, tailoring the S9 CPAP therapy to a particular mask style:

• Nasal
• Pillows
• Full Face

Once set, the Mask-Fit system runs a 3 minute seal integrity test, prior to therapy treatment. After 3 minutes, a Mask-Fit icon appears (a green or red smiley face). If the smiley face is red, adjustments are necessary until the smiley face turns green, then therapy will begin.

Optional Humidaire H5i Heated Humidifier with Climate Control

ResMed has re-invented the Humidaire line of CPAP humidifiers. The Humidaire H5i incorporates an intelligent humidity controlling technology. The Climate Control system is managed through a combination of S9 machines, H5i humidifier and ClimateLine heated tubing. There are five sensors throughout the system that monitor ambient temperature and patient airflow. The ClimateLine heated tubing uses a built-in mask temperature sensor to reach relative humidity at the mask. Sensors inside and outside the CPAP machine closely monitor changes in humidity and prevents condensation from forming inside the tube. Rainout can hinder CPAP therapy and affect compliance. With the H5i humidifier, set the level of humidity and attach the ClimateLine tubing to achieve a new level of comfort.

SlimLine and (Optional) ClimateLine Tubing

The S9 Series CPAP machines come standard with the new ResMed SlimLine Tubing. The small diameter air tube is ultra-light, flexible and provides a unique alternative to bulky, generic 6 foot hoses. ResMed also offers a Standard Hose.

The ClimateLine Tubing has an internal heated coil and mask temperature sensor that helps manage rainout throughout the hose. Climate Control algorithms measure temperatures from the humidifier to prevent condensation from forming. The ClimateLine Tubing can use the SlimLine Tubing Wrap to achieve total control of rainout.

Enhanced AutoSet Advantage

ResMed's AutoSet Advantage is the answer to providing 'just what you need, when you need it'. Pressure needs vary throughout the night. These variations depend on how deep the user is sleeping, body position, and other daily factors that can affect therapy levels. AutoSet Advantage effectively minimizes therapy and helps lower pressure-related side effects, like mouth-breathing and nasal dryness. The AutoSet Advantage has always provided a strong defense against a main types of sleeping events:

Flow Limitations

Snoring

Obstructive Apneas

The Enhanced AutoSet Advantage now detects and responds to open events using an event responsive Forced Oscillation Technique (FOT). A different event response is generated when an open airway event is encountered.

AutoSet Algorithm

The AutoSet algorithm measures flow limitations such as snoring and apneas on a breath-by-breath basis. Therapy begins at a minimal pressure. When the user's airflow shows signs of flow limitation, the AutoSet algorithm gently increases pressure based on the intensity and duration of the event. Once the event clears, pressures gradually decrease over a 20 minute time frame. Flow limitation occurs as the upper airway begins to collapse, before snoring and apneas are detected. By gradually increasing therapy pressure, the AutoSet algorithm reacts preemptively, resulting in lower average treatment pressures.

For example, as you sleep on your side, pressures will stay at a minimum because your airway is open. Turning on your back can collapse the airway and the AutoSet algorithm will increase the pressure. The AutoSet algorithm recognizes other conditions like sinus colds or allergies, which restrict nasal airflow. The AutoSet Advantage will increase treatment pressure accordingly, for whatever flow limitation may occur.

AutoSet with Easy-Breathe Technology

The S9 AutoSet uses Easy-Breathe Technology along with expiratory pressure relief (EPR) to make breathing through an APAP feel natural. At the onset of a flow limitation, the AutoSet algorithm responds with an increase of therapy pressure based on the degree of airflow restriction. Easy-Breathe technology aids in smoothing the pressure waveform during pressure increase. The process imitates normal respiration and ultimately makes breathing more comfortable than traditional CPAP machines. Easy-Breathe allows the user to receive the lowest pressure necessary to keep the airway open.

As an added benefit, Easy-Breathe allows the S9 Series to operate at 24dBA when set to 10cm of pressure from a distance of one meter. ResMed also managed to reduce the overall conducted noise that typically travels from the machine, through the tubing, and at the mask.

Expiratory Pressure Relief (EPR)

EPR decreases the pressure at the beginning of each breath and keeps the pressure low throughout the exhalation. The pressure is reduced by an exact pressure drop of one, two or three centimeters of water pressure. EPR gradually changes therapy pressures so there is little ventilatory effect. EPR also has an Event Detection Circuit. When a sleep disordered breathing event is expected or has occurred, EPR stops until the event concludes and normal breathing resumes.

For more information on all these technologies, check out ResMed's Tech Fact Sheet.

SmartStart / SmartStop

SmartStart / SmartStop enables your device to start automatically by breathing into the mask. This feature automatically starts and stops your CPAP machine when you put on or take off your mask.

On-Display Advanced Data

There are two menus that provide users with information about compliance, therapy and machine settings: Standard Menu and Clinical Menu. Both can be reached by using the "Info" button on your machine, but the Advanced Info Menu will only appear if the machine is in its Clinical Mode.

Standard Menu

• Usage
• Mask Fit
• AHI
• Period
• Days Greater than 4 Hrs
• Average Use
• Total Used Hours

The Advanced Menu displays all the above plus:

• Days Used
• Pressure
• Leak Rate

ResMed offers a "For Her" version of this machine. Click here to view the pink S9 AutoSet for Her CPAP Machine and H5i Heated Humidifier.

View our CPAP Newsletter: Understanding the S9 Line to see a detailed comparison of S9 Features.

The S9 Series can use (2) different Power Supply units, a 30 Watt or 90 Watt external brick. S9 machines come standard with a 90 Watt Power Supply that can power the CPAP machine and Humidifier. The 30 Watt Power Supply will only operate the CPAP machine and the humidifier will act as a passover.

The DC Converter 24V/90W For S9 Machines allows this machine to be used with battery power.

The S9 Series now can use the ResMed hypoallergenic air filter. The filter is made from non-woven acrylic and polypropylene fibers with a polypropylene carrier.

For help understanding how AutoSet with Easy-Breathe works, click on AutoSet with Easy-Breathe Tech Fact Sheet.

For help with setting up the S9 Series, click on the S9 Elite and AutoSet Welcome Guide.

Humidaire Cool Down Feature

All S9 Series machines utilize a "Cool Down" feature that runs the CPAP Motor up to 1 hour after turning the machine off. The motor helps to cool off the humidifier plate. You may hear a "faint blowing sound" when you turn the machine off. However, you can unplug the power cord and allow the heater plate to cool without airflow.

H5i Humidification Level

The H5i Heated Humidifier has three modes: Patient, Auto and OFF. These settings can be accessed under �Climate Control� through the Clinical Menu.

When the H5i is set in Auto mode it will measure the amount of humidity in the room and heat only as much as needed to reach the optimal moisture level of 80% and then stop heating and go into a cool down mode. When the H5i again senses the need to raise the humidity to 80% it will begin to heat.

When the H5i is set in Patient mode it will heat in the traditional manner until it reaches the desired setting of humidity or 80%. The H5i can be set from OFF to 6 and is adjusted from the HOME screen.

The maximum level of humidification is 80% whether using the SlimLine of ClimiteLine Tubing.

Please Note: If an O2 Enrichment Adapter is used with the ClimateLine Heated Tubing for the S9 Series of CPAP machines, the O2 Enrichment Adapter must be placed between the ClimateLine tubing and the mask instead of between the S9 Humidifier and the hose, in order for the ClimateLine tubing to work correctly.

Manufacturer Warranty
This machine comes with a 2 Year Manufacturer Warranty. CPAP.com will work with the manufacturer on your behalf if the machine needs repairs. Please follow these steps:

• Contact us at cpap@cpap.com or 1-800-356-5221 to receive an RMA (Return Merchandise Authorization) Number before returning the equipment
• Include a note with the machine describing the issue you are experiencing, along with your full contact information to include a return shipping address and the RMA number provided to you
• Ship only the defective items to CPAP.com at 10101 Stafford Centre Drive, Stafford, TX 77477
• Do not return accessory items such as the carry bag, hose or power cords
• Loaner Machines are available for rental during the warranty process
• Email updates will be sent to keep you informed as the machine moves through the warranty process
• CPAP.com will contact the manufacturer on your behalf and handle all shipping between us and the manufacturer
• The repaired or replaced unit will be returned to you. Shipping charges may apply.

Please note: The manufacturer warranty is voided by water damage or misuse of the machine.