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S8 Elite� II CPAP Machine

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The S8 Elite II is the premium continuous positive airway pressure (CPAP) model in ResMed's S8 series. The overall design has changed little, but major improvements can be seen in the quietness of the motor and the new Easy-Breathe technology. The Elite II is a compact, all-in-one system that is ideal for travel or the home.

Manufactured by ResMed.

4.9 of 5 35 Reviews

Item #33039

This product no longer available and this information is for reference only. Newer Model Available: S9 Elite� CPAP Machine with EPR�.

Replacement Parts

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1-800-356-5221(Mon-Fri 8AM-10PM CST, Sat 8AM-6PM CST)

Product Features

The ResMed S8 Elite II is equipped with Easy-Breathe Technology along with new software, The CPAP now has a quieter motor and an improved EPR (Expiratory Pressure Relief) mode. The Easy-Breathe Technology is a new level in comfort and quietness. Use Version 3.5 or greater ResScan Software to check therapy effectiveness, compliance data, and periodic trends.

Users can choose a fixed CPAP pressure or an EPR mode 1 to 3 for maximum comfort with control. Adjusting the EPR settings allows the Easy-Breathe Technology to drop the pressure upon exhalation so that breathing feels more "natural". A pressure Ramp is also available and provides for a slow and comfortable increase to your pressure setting.
The S8 Elite II offers an improved motor that outputs only 24 decibels at 10cmH20 measured at one meter away. The S8 Generation One motors average 30 Decibels, making the new motors 75% quieter.
Fully customizable, the S8 Elite II has reminders for accessory replacements like your mask or machine filters. Take advantage of the remote downloading capabilities with the ResScan Data Card which provides comprehensive efficacy and usage data that helps you monitor critical trends on a breath-by-breath basis. The S8 Elite II allows for complete tracking and easy monitoring of patient therapy and compliance.
Compact and robust, the design of the S8 Series is portable and user-friendly, including Auto Altitude Adjustment to make sure the correct pressure is delivered when you travel.
The unit comes with a built-In power supply which automatically detects the DC input, which is ideal for travel. Please purchase the DC-12 Converter For S8 Machines.
Also included are the Ramp and settling options that enhance comfort and help improve compliance.

Word of Caution to RESmed S8 and S8 II Machine Users

YOU MUST USE the DC-12 Converter For S8 Machines when drawing power directly from a DC battery source (no inverter and no humidifier). Failure to do so can result in damage to your CPAP. ResMed S8 machines with a Humidaire heated humidifier (h3i and H4i) require a pure AC power source in order for the humidifier to work properly. The machine disables the humidifier when connected through DC Power. The machine and humidifier will both work properly only when connected to pure A/C power. You will need the DC to AC Pure Sine Wave Power Inverter to operate both.

Specifications

This Product Includes...

S8 Elite II Machine
6 Foot Hose
Carrying Case
One Filter
Manual
ReScan Data Card
Power Cord

Product Specifications

Pressure 4 to 20 cm H2O
Ramp Time 0 to 45 min. (5-min. increments)
Starting Ramp Pressure 4 to CPAP; user adjustable
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 8500Ft (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
Max Exposure Heat for Machine Machine should not be exposed to heat greater than 140 degrees Fahrenheit

Product Comparison

S8 Elite II CPAP Machine

	S8 Elite II 767.00	Zzz-PAP 179.00	Transcend II Travel 449.95
Basic Features
Manufacturer This is the company that produces the product being compared.	ResMed	Probasics	Somnetics
Type This identifies the machine as continuous, auto adjusting, or bilevel operation. This does not identify whether the machine automatically adjusts pressure. Auto adjusting refers to APAP, whereas BiPAP Auto is differentiated using the Auto Pressure Adjustment property. BiPAP machines are defined further using Spontaneous or Timed properties. A CPAP machine blows one constant pressure of air into your passageway throughout the night. Your ideal pressure was determined during your sleep study. A BiPAP machine delivers two separate pressures of air; One when the patient inhales and a separate pressure when they exhale. The machine alternates between the two set pressures to help optimize your sleep apnea treatment. An APAP machine automatically adjusts on a breath by breath basis to blow the minimum pressure needed to keep your airway open during sleep. This allows your machine to provide you with your ideal pressure nightly.	CPAP	CPAP	CPAP
Warranty Warranty is the length of time that the manufacturer will guarantee a product to be free of defects. Warranties vary in length depending on manufacturer, but generally all machines come with a 2 Year Warranty.	2 Years	2 Years	2 Years
Sound Level This is the level of sound the machine produces at a pressure of 10cm, standing 1 meter away or roughly 3 feet from machine. Measured in Decibels, the values also indicate whether the machine is considered a "quiet CPAP"; see Quiet property.	24 dB	30-dB	29 dBA
Quiet This identifies which machines have a decibel rating of 29 and lower. This does not account for use with the humidifier attached, which could supply additional volume that can muffle or amplify sound. This property does not account for noise that travels through the CPAP tubing, seemingly sounding louder than the measured db rating.	Yes	No	Yes
Manuals Included This indicates which manuals are included with the purchase of a CPAP machine. Most all machines come with a patient manual; also called 'user manual', which may or may not have pressure setting instructions. Some machines come with both the patient and quick setup guide or both patient and clinician manuals.	Patient/Quick Setup	Patient/Quick Setup	Patient/Quick Setup
Dimensions
Travel Sized Looking to travel? We have found some machines are easier to travel with than others. These smaller and more lightweight machines are still robust enough for constant daily use as well as travel.	Yes	Yes	Yes
Under 3 lbs This measures only the weight of the machine and does not include total weight of power cables, bag, additional batteries or non-built-in humidifiers.	Yes	Yes	Yes
Machine Weight This is the actual weight of the CPAP Machine without any accessories, power cord, or humidifier. Machines with a weight 3lbs or less are also identified in the Under 3 lbs property.	3 lbs	1.76 lbs	0.94 lbs
Entire Weight This is the combined weight of the machine, heated humidifier, power cables, bag and hose.	7 lbs	5.3 lbs	2.4 lbs
Entire Size This is the combined dimensions of the CPAP with the Heated humidifier.	12" x 5" x 4"	10" x 6.75" x 5.5"	6.1" x 3.5" x 2.8"
Entire Package Size This is the size of the CPAP with Heated Humidifier in its travel bag.	12" x 15" x 5"	10.75" x 7.5"x8"	9" x 4" x 10"
Machine Size Only Measures the overall dimension of the machine only. Machines with a built-in humidifier are marked NA and must refer to Entire Size dimensions.	4.4" x 6.5" X 5.7"	5.7" x 5.1" x 3.9"	6.1" x 3.5" x 2.8"
Humidifier Features
Heated Humidifier This indicates which heated humidifier works best with the listed CPAP machine. In some instances, Built-in is used to describe a machine/humidifier combination system. The Fisher and Paykel HC150 was used for machines that do not have an integrated or built in humidifier system.	Humidaire 4i	Zzz-PAP Humidifier	HME Waterless Technology
Built-In Humidifier Identifies which CPAP has a humidifier that is built into the CPAP. Built-In humidifiers cannot be separated from the CPAP machine.	No	No	No
Heated Humidifier Type This property identifies how the machine incorporates a Heated Humidifier. Build In humidifiers are built into the CPAP machine and cannot be separated from the machine. Integrated humidifiers connect directly to the CPAP machine and they can only be used with compatible CPAP machines. With Integrated� humidifiers, the CPAP machine, can be separated and used without the humidifier. CPAP machines that do not have a built in humidifier and do not have an integrated humidifier option have to use a Stand Alone humidifier as the machine's heated humidifier option. Stand Alone� humidifiers can be used with any machine and connect to the CPAP machine with an additional hose.	Integrated	Integrated	Integrated
RainOut Reduction Manufacturers are finding ways to reduce the amount of water that collects in the CPAP hose when using a Heated Humidifier. The Rainout Reduction feature varies by manufacturer and machine and can be anything from an integrated heated hose, to technology that measures the humidity at the mask and adjusts the humidity to reduce rainout.	No	No	HME Waterless Tech.
Integrated Heated Hose This indicates that the machine has an integrated heated hose option to enhance humidification and reduce rainout. An integrated heated hose draws its power from the machine itself and does not have a separate power cord and is adjusted through the machine settings.	No	No	No
Pressure Features
Auto Pressure Adjustment This property defines whether the machine automatically adjusts pressure to meet the needs of the CPAP user on a breath-by-breath basis. All APAP machines are defined as 'Auto Adjusting', but some BiPAP's also use an Auto feature on both the IPAP and EPAP. If not marked, Yes, assume the machine does not have AUTO capabilities.	No	No	No
Pressure Range A CPAP (Constant Positive Air Pressure) delivers continuous airflow at a prescribed pressure at 4cm to 30cm. APAP operates between a range and BiPAP machines are a mix of ranges and constant pressures. This pressure is measured in centimeters of water pressure (H2O) and 4-20cm is average pressure range on most CPAP machines.	4-20cm H20	4-20cm H2O	4-20 cm
EPAP Pressure Range This Property lists the operating range for the Exhalation Positive Airway Pressure (EPAP). This is the pressure setting used when you exhale. EPAP is always lower than the IPAP (inhalation) pressure, making breathing out easier and more comfortable.	NA	NA	NA
Easy Breathing Pressure Relief is a feature that lowers your therapy pressure to help with difficulties breathing against the machine's airflow, providing a more comfortable and natural breathing pattern. Assistance can occur on the Exhalation, on the Inhalation, and on both exhalation and inhalation at the same time.	EPR with Easy-Breathe	No	No
Ramp The Ramp feature allows the user to start treatment at a lower pressure to fall asleep with, gradually raising the pressure over a set time. This is a comfort setting and can set from 0 to 45 minutes on most CPAP machines.	Yes	Yes	Yes
CPAP Mode This property defines whether the machine is capable of continuously blowing a constant pressure. All CPAP machines are defined as 'continuous', but some BiPAP's and APAP's also come with a CPAP mode; some BiPAP and BiLevel machines Do NOT. By setting the IPAP and EPAP to the same pressure, a CPAP Mode is achieved, preventing the EPAP pressure from dropping.	Yes	Yes	Yes
Power Features
Direct Battery Operation Indicates which machines have a DC port in which you can use to connect a battery pack or a deep cycle marine battery with an optional DC cable. This is different from an integrated battery that works only with the machine it was designed for. (i.e. Everest CPAP Machine) see property Integrated Battery	Yes	No	Yes
Voltage Range Domestic Voltage is the voltage that is used with a standard wall outlet in the United States and ranges from 100-120 volts. International Voltage can range from 220v-240v AC.	100-240V AC	100-240V AC	100-240V AC
Optional DC Cable A 'Yes' answer indicates that the CPAP Machine has an optional DC cable that plugs directly into a DC port (see _Direct Battery Operation_). This allows you to use a DC power source, such as a battery or car cigarette lighter. Although some cables already come with battery terminal leads, some DC cables will need a separate part that connects the cigarette lighter adapter to another adapter with terminal leads.	Yes	No	Yes
Integrated Battery An integrated battery pack attaches to and functions seamlessly with the machine it is integrated with. It allows your CPAP to run on AC and fail over to the DC battery only if necessary.	No	No	No
Software Features
Advanced Software/Data Identifies which machines are data capable and have the ability to track your therapy progress over time. The machine captures key metrics like AHI (Apnea/Hypopnea Index), Leakage, and most pressure used. Depending on the machine, the data can be retrieved through an on Machine Screen Display (MSD), through Optional Software (OS), and/or through SmartCode (SC).	OS	No	OS
Data Card This property marks the machines that have the ability to record performance data on a removable card. Some machines that are flagged as having software (seeOptional Software), do not have removable memory cards, rather instead, records information on-board and must use a download cable to retrieve the data from the machine.	Yes	No	No
Optional Software Software is an option on some CPAP machines. The software can give details on compliance and performance. The patient or physician downloads the data from the CPAP machine to determine how long a patient has used their machine each night and how well the machine is working to stop Apnea/Hypopnea events. This property shows the software package to use for machine that has the ability to transfer data to your computer and report Hours of Usage. See Advanced Software for a list of machines that can report AHI or Leakage.	ResScan 3.5	No	Yes
Additional Features
Auto Altitude Adjustment Altitude Adjustment is defined as the machine's ability to compensate for changes in altitude. Compensation can either occur manually or automatically. Manual adjustments occur within the Setup Menu and must be set by the user. Automatic requires no user intervention.	Auto	Manual	Auto
Auto ON/OFF This feature turns the machines off and on when putting on or taking off the mask. When you put your mask on the machines senses you breathing and turns itself on. Take off the mask and the machine turns off.	Yes	No	No
Mask Off Alert This feature detects excessive mask leaks due to poor cushion seal or when a user stops therapy by removing a mask when in use. The alert can be in the form of an audible alarm (ALARM) or a text message on the unit's LCD display (LCD).	LCD; ALARM	No	No
Spontaneous Spontaneous (S) mode tells the machine to start blowing at IPAP pressure with no specific interval set. The machine must wait and detect a break in the breathing cycle before reacting, switching from exhalation to inhalation. If a backup rate is needed, then the unit will need a time interval setting and will be marked 'Yes' on the Timed property.	No	No	No
Timed Timed (T) or Spontaneous Timed (ST) modes provide a customizable backup rate that forces the machine to switch from exhalation to inhalation. In ST Mode, the machine monitors the breathing cycle and switches from EPAP to IPAP once the backup time is met or whenever the break is detected through the sensors; whichever occurs first. The time aspect is only meant to act as a backup respiratory rate to the (S) function (see Spontaneous). This is used for patients with central sleep apnea, or those who need non-invasive mechanical ventilation.	No	No	No
Designed For Her These machines were designed with a woman's lifestyle in mind.	No	No	No
Customer Reviews
	5 4 3 2 1 35 Reviews	5 4 3 2 1 858 Reviews	5 4 3 2 1 98 Reviews

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Manufacturer Note:

Some product images supplied by ResMed © ResMed 2010 Used with Permission
ResMed products are for sale only to patients within the U.S. and not to other third parties or businesses.
A valid prescription is required for the purchase of this product.
All services provided by CPAP.com, including advertisement, ordering, sale, delivery, instruction, and setup of the products are performed solely by CPAP.com and independently of the manufacturer.

Important Tips

Word of Caution to RESmed S8 and S8 II Machine Users

YOU MUST USE THE DC12 Converter for S8 Machines in conjunction with any battery source, when using an S8 or S8 II machine. Failure to do so can result in damage to your CPAP.

DC to AC Pure Sine Wave Power Inverter for Resmed S8 Machines

ResMed S8 machines are required to use a pure sine wave AC power source when connecting through an inverter; particularly, the ResMed S8 Compact is not DC compatible and must plug into a wall socket. The DC to AC Pure Sine Wave Power Inverter provides clean AC power to any CPAP. You will need this product to operate the S8 Compact or any other S8 machine using the standard AC plug.

Cool Down Feature

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.

SmartStart

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.

Humidification

The S8 AutoSet II and Elite II are compatible with the Humidaire 3i and the Humidaire 4i Heated Humidifier, but the CPAP machines were manufactured BEFORE the H4i was manufactured. When setting either machine, please note that H3i will appear on the display.

Leak Alert

Leak alert indicates when a mask is leaking as a result from a poor seal, open mouth or the complete removal of a mask. The alert is audible as well as visible on the machine's LCD display. This is one of the loudest and audible alerts on the market!

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.

CPAP Power Options

Universal Power

The S8 Series CPAP machines operate automatically between 110v and 240v AC. When traveling either inside or outside the USA, there are no switches to switch or fuses to change. The machine will automatically sense what voltage is needed and set itself to run on that power.

The user will need to adapt the plug that goes into the wall to fit the style of outlet socket that is being used. This is simply done with a Power Adapter Plug kit. This is the same type of plug adapter that would be used with a hair dryer or an electric shaver. World Traveler Power Adapter Plugs.

DC12 Converter for S8 Machines

ResMed S8 Series CPAP machines come equipped with a DC plug on the back of the unit. This allows the user to connect the CPAP to an external DC battery source. This cord is ideal for travel by recreational vehicle, boat, or any external DC batter that is equipped with a cigarette lighter plug.

CPAP.com Battery Kit for S8 Machines

The 2.5 lb CPAP.com Battery Pack is surprisingly small and lightweight. The lithium ion battery can be recharged at any discharge level without losing charge time due to battery memory loss. This battery has been approved by the United Nations and Department of Transportation as tested safe for travel. This battery kit comes with the CPAP.com battery and the DC12 Converter for S8 Machines, the cable needed to power most ResMed S8 CPAP machines.

Respironics Battery Kit for S8 Machines.

This portable battery pack is an external lead acid battery that is the ultimate in power, portability and convenience. This battery kit comes with the Respironics battery and the DC12 Converter for S8 Machines, the cable needed to power most ResMed S8 CPAP machines.

Machine Pressure and Battery Options and Performance

*Note: This is a battery life estimation based on the battery and the machine. Each machine has unique power needs. Look for the Battery kit that has all the cables needed to safely run your machine. Each battery kit page contains a note about which machines are compatible with that specific battery kit. Please always read the "Important Tips" tab for further information on battery use.

CPAP Product Customer Reviews

35 Reviews

Voted most helpful favorable review

Elite II -vs- Respiron. M Pro C-Flex

Henry M, CA – January 10, 2009

"I now own both machines and would like to compare them.
Similarities:
First, both are excellent machines and either will be the best CPAP you have ever used. Bar none! Much better than the REMstar that they replaced.
Second, both the EPR (ResMed) and C-Flex (Respironics) work beautifully. I will never again use a CPAP without this technology!
Third, both machines have excellent heated humidifiers (Yes, order the bundle!) and I would not be without this option.
Fourth, their size and weight are very similar, both travel very well
Differences:
1. The Resmed Elite II is much quieter than the M Pro. The M Pro changes pitch as the C-Flex drops the pressure during exhalation. But you quickly get used to it. My wife asked me if my Elite II was working... she could not hear it, being used to the M Pro cycling. Neither is very loud but you barely hear the Elite II.
2. The M Pro is easier to set up, the Elite II has lots of options and choices. To be fair, the M pro was set up by Apria and I had very little to change. The Elite II had its CPAP pressure set by CPAP.com and I set all the other options. Quite intuitive but takes 15 - 20 minutes of reading the book.
3. The Elite II humidifier (H3i) seems to hold more water and just a bit easier to fill. Both are great.
4. The Respironics products are supported by most sleep clinics, Resmed needs to provide software and card readers to all clinics because it seems that Respironics has a lock on them... (IMHO) I don't know if my doctor can use the data from my Elite-II -- I'll ask him Monday.

Summary: Either one works beautifully and will give you the therapy you need. The Resmed Elite II will be my favorite (Quiet!) but the Respironics M Series Pro may be best for your Doctor's ability to study your therapy."

Showing All Reviews Most Helpful First | Newest First

Neal C, MD – May 10, 2012

"I had an older S8 and was happy with it. I have had light to moderate sleep apnea for 15 years and am comfortable with a nasal mask and no humidifier. I tried the most current models of both the Resmed and Respironics machines and found that the design, compactness, and noise factor of this model beat out the newer machines that are designed to be used with a humidifier."

S8 Elite II

Brad J, UT – September 01, 2011

"I was a little nervous, buying a CPAP machine online. I thought it might be difficult to set it up myself - without the help of a technician. I was wrong.
The setup was easy; the instructions understandable. Within just a few minutes it was working perfectly. I can't believe a CPAP can be this small and quiet."

Outstanding

Kevin J, NY – August 19, 2011

"Its small size makes traveling a breeze. Its super quiet and if you find the hidden menu to adjust air pressure, you can adjust it yourself if you get a cold and need more pressure. I wish it had a longer cord. I need to travel with an extension cord because hotels don't often have an outlet near the bed that is available and open. The air filters are ok, and rather extensive to replace. I found home depot has room airconditioner filters and if you get the ones that filter 'pollen' and/or pet dander, are the best. Its cheaper and works as a filter just as good."

Excellent CPAP

Marcus F, FL – July 11, 2011

"I got the S8 Elite II to replace my broken S8 Compact. It was easy to set up and runs very quietly. As a bonus it accepts my current Humidaire 3i humidifier so I didn't have to get a new one. I recommend this unit without reservation."

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CPAP Video & FAQ

Frequently Asked Questions (FAQs)

What does CPAP therapy do?

CPAP therapy provides a constant airflow which holds the airway open so that uninterrupted breathing is maintained during sleep. It is traditionally provided through a nasal mask that seals around the nose to maintain the pressure level.

Which CPAP masks work on which machines?

All CPAP masks work with all machines.

How do I choose the machine that is right for me?

We provide our customers with many tools to make informed decisions about their machine purchases. Options include:

Calling a CPAP Expert Toll Free. 1-800-356-5221.
Comparison Charts. These charts compare available machines, feature by feature. If you don't know the meaning of a feature, click on the question mark for a definition. Click on the image or name of the product for more detailed product information, pictures and resources.

CPAP Comparison Chart

APAP Comparison Chart

BiPAP Comparison Chart
Help Me Choose Guide. We created a guide to help you select the right machine according to your preferences. The guide asks you a series of questions regarding your preferences and your prescription. Based on your answers we provide you with a comparison chart of the machine that meet your criteria. Get started here:

Help Me Choose - Machine
Browse Our Machine Product Categories. These categories show each machine our company offers, ranked by popularity. Popularity is determined by a mix of sales data and our in house opinion of the quality of the machine based on our experience and customer feedback. The best products float to the top of our categories.

CPAP Machine Category

APAP (Auto Adjusting) Machine Category

BiPAP (Two Pressure) Machine Category

How can I compare different machines?

We work very hard to provide many different ways for our customers to compare products. Here are the machine product guides we have created and maintain:

CPAP Machine Comparison Guide. This guide stacks up every CPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular CPAPs, or all CPAP machines we sell.

Compare Most Popular CPAP Machines

Compare All CPAP Machines
Auto Adjusting Machine (APAP) Comparison Guide. This guide stacks up every APAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular APAPs, or all APAP machines we sell.

Compare Most Popular APAP Machines

Compare All APAP Machines
BiPAP, VPAP and BiLevel Comparison Guide. This guide stacks up every BiPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular BiPAPs, or all BiPAP machines we sell.

Compare Most Popular BiPAP Machines

Compare All BiPAP Machines

What comes with my machine?

Machines come with a six foot hose, power cord, at least one filter, and manuals. Most manufacturers include a carrying case which is designed specifically for their equipment. CPAP / BiPAP / APAP machines do not come with a delivery system or mask. CPAP Masks must be purchased separately.

To see the list of what specifically comes with each machine, you can browse for a machine. Then on the product page, click the "Specs" tab to see a full list of what comes with the machine.

Do all CPAPs use filters?

Yes, all CPAPs use at least one filter that is usually a type of foam material and washable. Some CPAPs offer finer filtration with the addition of a disposable paper filter.

Cleaning and changing filters is the only maintenance required for a CPAP machine.

The filters are located at the back of the machine at the air intake. The image below shows the black foam filter at the back of the Everest 3 CPAP Machine.

Are prescriptions required for mask, machine and/or humidifier purchases?

Yes. Federal law requires we have a valid prescription on file before we ship your mask, machine and/or humidifier.

We provide many easy ways to get your prescription:

We can request your prescription for you! When you checkout, just let us know you would like us to request your prescription, or you can log into your account to have us request your prescription.
Fax your prescription to our Toll Free fax number: 1-866-353-2727, or our international fax number: 713-541-7370
Email your prescription to cpap@cpap.com
Upload your prescription in your account, under the prescriptions section

For more information on prescriptions, please see our Prescription Section of the Learning Center.

What is ramp?

The ramp button on a machine is a feature that allows for a gradual pressure build-up to your prescribed pressure. The feature is enjoyed by those with high pressures because they ease up to their pressure.

What is exhalation relief?

Exhalation relief is a comfort feature offered by two manufactures which reduces the air flow at the time of exhalation making the breathing process more natural.

Respironics = C-Flex, C-Flex+, A-Flex and Bi-Flex
Resmed = EPR (Expiratory Pressure Relief)

What maintenance is required on machines?

The only care a CPAP or BiPAP machine requires is to clean or change the filters at the air intake. This keeps the internal parts from accumulating dust. Fine, paper filters should be changed out every 30 days, or when they appear soiled. Foam, washable filters should be rinsed with clear running water once a week, allowed to air dry, and reinserted.

There are some other suggested actions to care for your machine:

Keep the area around your machine clean. Remove any dust from around the machine to improve the air quality delivered to your machine and you.
Keep the air intake of the machine unblocked. Curtains, bedding, and papers can easily block the air intake of your machine, reducing the airflow.
If a humidifier is used do not pick up the machine with the humidifier attached. With most machines it is easy to spill water from the humidifier chamber into the machine causing damage. Manufacturer warranties are voided by water damage to the machine. To avoid this, remove the chamber from the humidifier and then remove the humidifier from the machine rather than transporting them together.
If a humidifier is used you should empty the water from the chamber every morning. Accidents happen. If a family pet or family member moves the machine and humidifier with water in the chamber it is more likely that water could be spilled into your machine. Water damage to a machine voids the manufacturer warranty.

What Data Capable Machines are available?

CPAP machines which record full data (like AHI and leak info):

Philips Respironics M Series Pro C-Flex Machine
Philips Respironics PR System One REMstar Pro CPAP Machine with C-Flex+
ResMed S8 Elite II CPAP Machine
Covidien/Puritan Bennett Sandman Info HC CPAP Machine with Built In Heated Humidifier (not to be confused with the model named "Intro.")
Fisher & Paykel SleepStyle 244 CPAP Machine with Built in Heated Humidifier

AUTOPAP ("autotitrating cpap" or "APAP") machines which record full data:

BILEVEL ("bipap") machines which record full data:

*Note: The older pre-M Respironics CPAP, APAP and BiPAP Pro 2 with Bi-Flex, the ResMed S7 VPAP III, S8 Elite, and the Puritan Bennett Goodnight 420S, 420SP, and 420E record full data.

How do I use a battery to operate my CPAP?

First you need to determine if your machine is configured to operate on DC power and has a DC power outlet. If your machine does have a DC power outlet and you want to run your marine battery, then you will need the correct DC cable for your machine and an adapter cable that fits over the cigarette lighter plug and ends in alligator clips.

CPAP.com sells complete battery kits with everything you need for your machine including the right cables for your machine and the battery. You can find the right battery kit for your machine here.

If your machine does not have a DC power outlet, then you will also need an inverter to be able to run your machine on battery power.

If you have questions about the specific power needs of your machine, review the "Power" tab on your machine's product page, or give us a call at 1-800-356-5221.

What are the CPAP, BiPAP and Sleep Apnea related billing codes?

EO601 RR is CPAP Rental
E0601 NU is CPAP Purchase
A7034 is CPAP Mask
A7032 is CPAP Nasal mask cushion
A7033 is CPAP Nasal pillows
A7030 is CPAP Full face mask
A7031 is CPAP Full face mask cushion
A7044 is CPAP Oral interface
A7027 is CPAP Hybrid mask
A7028 is CPAP Hybrid mask cushion
A7029 is CPAP Hybrid mask nasal pillow
A7046 is CPAP Humidifier chamber
A7037 is CPAP Tubing, long and short hoses
A4604 is CPAP Heated tubing
A7038 is CPAP Disposable filter
A7039 is CPAP Gross particle (foam) filter
A7035 is CPAP Headgear
A7036 is CPAP Chinstrap
E0561 NU is CPAP Passover humidifier
E0562 NU is CPAP Heated humidifier
E0470 RR is BiPAP Rental
E0470 NU is BiPAP Purchase
E0471 RR is BiPAP-ST Rental
E0471 NU is BiPAP-ST Purchase

Other CPAP items are listed under E1399, which is miscellaneous.

What does a CPAP prescription need to say?

Contains one of the following words or phrases "CPAP" or "Continuous Positive Airway Pressure"
Contains your physician's contact information
Contains your physician's signature
Contains the patient's full name
Contains your specific pressure.
- Example: 9 CM/H2O
- Example: 9
- Example: 14 CM/H2O
- Example: 14

What is CPAP therapy?

CPAP stands for Continuous Positive Airway Pressure. CPAP therapy is the most recommended and the most effective treatment for Obstructive Sleep Apnea.

A CPAP machine provides air at a constant prescribed pressure through a tube and out of a CPAP mask to a person with Obstructive Sleep Apnea. CPAP therapy provides a constant airflow which holds the airway open so that uninterrupted breathing is maintained during sleep. This eliminates sleep apnea events and allows the patient to get a restful sleep.

The pressure of the air is determined during your sleep study and your doctor will prescribe you a CPAP machine at that pressure.

CPAP therapy is traditionally provided through a nasal mask that seals around the nose. However, more innovative and comfortable options are available and advances in the delivery of CPAP therapy are continually occurring.

For instance: CPAPs with that boast FLEX or EPS technology will offer you exhalation relief. APAP, BiPAP and BiLevel machines offer various levels of pressure throughout the night and exhalation relief.