The S8 AutoSet II is one of the top models in ResMed’s S8 series. Featuring optional fully integrated humidification, remote data downloading capabilities, clinically proven AutoSet algorithm, EPR and the added comfort of Easy-Breathe technology. The AutoSet II is a compact, all-in-one system, ideal for travel or at home. Use Version 3.5 or greater ResScan Software to check therapy effectiveness, compliance data, and periodic trends. Read Full Description...
Designed to provide the most comfortable therapy available, the ResMed S8 AutoSet II is simple, quiet and easy to use. One-touch settings and simple set-up make this machine very attractive since the AutoSet algorithm works on a breath per breath basis and automatically adjusts to find the lowest required pressure needed, preventing most snoring and apnea events. Take advantage of EPR and the new Easy-Breathe technology which offers smoother, comfortable pressure by synchronizing with the CPAP user's normal breathing patterns, allowing for natural and stable breathing. Packed with features, ResMed was able to keep sound levels well below the industry norm, operating at 24 db(A).
ResMed has incorporated its expiratory pressure reduction system into the Auto Mode on this unit. A major feature missing from the first version. 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 uses slower pressure changes, so there is little ventilatory effect. However, EPR does feel very much like a Bilevel to the patient.
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.
The S8 AutoSet II uses Easy-Breathe Technology along with EPR to make breathing more natural with smooth pressure waveforms, which imitates normal respiration and ultimately makes breathing more comfortable than traditional CPAP machines.
Dimensions 4.4” x 6.5” X 5.7”
(112mm x 164mm x 145mm)
Weight 3 lbs
Filters Pollen
Device Set-Up LCD/Keypad
Data Storage Capacity Display: 365 days summary data and 5 nights detailed data (up to 500 events per session. Data Card: 180 days of summary data and 5 nights detailed data (up to 200 events per session)
Electrical Requirements 100 – 240 V, 50/60 Hz; 110 V, 400 Hz; 2.5A <140 VA (110W)(maximum power consumption). Instantaneous peak power consumption <340VA
Operating Altitude Sea level to 8500’ (2591 m)
Humidification Optional Integrated Heated Humidifier or Pass-over Humidifier
DC Power Only use DC-12 Converter by ResMed for DC input or damage may occur.
Warranty 2 Year Manufacturer
CPAP.com Comments
A ResMed DC-12 Converter For S8 Machines must be used with the 12 volt jack. Any other cable will likely cause a machine failure. You can find this item on our site.
Do not run this machine on a regular AC to DC inverter. A pure sine wave inverter must be used. We sell these on the website.
SmartStart enables your device to start automatically by breathing into the mask. Leak alert indicates when a high mask leak is present.
If you have enabled Leak Alert, the SmartStart feature automatically becomes disabled. You cannot have both features enabled.
All S8 and S8 II CPAP 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.
The S8 AutoSet II and Elite II are compatible with this product, but the CPAP machines were manufactured BEFORE the H4i was manufactured. When setting either machine, please note that H3i will appear on the display.
User Reviews
Great machine
March 02, 2010
(5 out of 5) by Jeff H, OK
"After 11 plus years on cpap, this machine is the best I've used so far. For three years I used Respironics machines and I had too many problems with them working right. One has been sent in twice for repairs.
This machine is easier to breath with / against, I like the auto on / off feature, I like that you can pre-warm the humidifer, and you can get usful data off the machines screen. It also works great with my Swift LT mask. Highly recommended."
Quiet Operation
February 19, 2010
(5 out of 5) by Steven K, IL
"I purchased this machine to replace a 6 year old CPAP unit so I can use my old unit as a backup. The new unit is physically smaller and quieter in operation. I like the fact that since it is an Auto Cpap that it able to adjust the pressure as necessary. The humidifer tank is also easier to access and refill. If I need to take it on a trip it fits into a more compact travel bag. I have not yet used the software so I can not comment on it yet. Well pleased with this newer technology."
February 18, 2010
(5 out of 5) by Annoymous User
"Very pleased."
S8 AutoSet II--excellent
February 17, 2010
(5 out of 5) by Gerry M, Princeton, NJ
"Love this machine. Small, about 1/2 the size of my old machine. And I just travelled with it and it was a breeze. Very happy."
Excellent Easy CPAP
February 12, 2010
(5 out of 5) by Wallace S, AL
"Second S8 in the house. Easy to use menus. Easy to use adjustments. Based on wife's machine, specified machine type that I wanted for my CPAP machine. Durable. Easy to transport. Self-contained carry system/bag. Excellent choice for an easy to use, effective, capable system."
This movie explains the distinctions between Basic, Memory, and Auto cpap machines as well as Bipap, Bipap-st machines. Relative sizes, features and functions are seen. Choose the broadband version only if high picture quality is needed.
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