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M Series Auto CPAP with A-Flex

Name: M Series Auto CPAP with A-Flex
Brand: Philips Respironics
SKU: DS510S
Price: 545.00 USD
Availability: Discontinued
Rating: 4.8 (249 reviews)

BY Philips Respironics | Item #DS510S

(249) Read Reviews

This item has been discontinued by the manufacturer.

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M Series Machine - Filter View (Shown With Filter Installed)

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M Series Auto CPAP Machine

The M Series Auto is a small and feature packed CPAP that looks more like a stylish clock radio than a CPAP.

It easily packs away in your carry on luggage, and has an incredible number of high-tech features, including the new A-Flex comfort feature, self-adjusting pressure, and powerful clinical data features, on-board.

Looking to upgrade your Philips Respironics machine? Check out the DreamStation 2 Auto CPAP Machine.

M Series Auto CPAP Machine

Looking to upgrade your Philips Respironics machine? Check out the DreamStation 2 Auto CPAP Machine.

Learn More About Your New Machine

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?

Any mask will work with any machine, with one important exception. The ResMed AirMini is only compatible with certain ResMed CPAP masks. Compatible masks for the AirMini are as follows:

ResMed AirFit™ N20 Nasal Mask
ResMed AirFit™ F20 Full Face
ResMed AirTouch™ F20 Full Face
ResMed AirFit™ P10 Nasal Pillow

When considering another CPAP, APAP or BiPAP machine from ResMed or any other manufacturer, mask compatibility extends to all brands. The AirMini uses non-standard tubing to connect the machine to the mask, and is the primary reason why other masks won't work with the AirMini. Despite this issue, many of our customers consider the AirMini to be an excellent machine.

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. 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.

Travel CPAP Comparison Chart

APAP Comparison Chart

BiPAP Comparison Chart
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, APAP, and BiPAP 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.

What is exhalation relief?

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

The following are the different types of exhalation relief names by manufacturer.

Philips Respironics = C-Flex, C-Flex+, A-Flex and Bi-Flex
Resmed = EPR (Expiratory Pressure Relief)
3B Medical = RESlex
Apex Medical = PVA (Pressure Variation Algorithm) Pressure Relief
Curative Medical = EUT (Expiratory Unloading Technology)
DeVilbiss = SmartFlex
Fisher & Paykel = SensAwake Technology
Human Design Medical = Z-Breathe
Somnetics = EZEX

Here are some machines with an exhalation relief feature:

Transcend Auto miniCPAP™ Machine with EZEX
PR System One REMStar 60 Series Auto with Bluetooth
AirSense™ 10 AutoSet CPAP Machine with HumidAir™ Heated Humidifier
+ See More

What is A-Flex?

A-Flex is a form of exhalation relief which helps the air pressure from an APAP machine mirror a person's breathing. Like C-Flex, A-Flex provides flow-based pressure relief at the beginning of exhalation. Like Bi-Flex, A-Flex softens the pressure transition from inhalation to exhalation to provide additional comfort in an auto-CPAP mode.

An example of a machine with A-Flex is the PR System One REMStar 60 Series Auto with Bluetooth.

A-Flex Easy Breathing Technology Visual Graph

A-Flex Easy Breathing Technology Visual Graph

What maintenance is required on machines?

The only care a CPAP, APAP 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.

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

Keep the area around your machine clean by removing any dust from the area to improve the air quality delivered to your machine and to 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 with your therapy, 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, 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.

Why might I prefer an APAP machine?

Some CPAP users find it more pleasant to breathe with an APAP than with CPAP. The pressure delivered by an APAP machine automatically changes as needed to deliver the minimal pressure required to maintain the airway. The pressure delivered by a CPAP machine is set to a single pressure, the highest necessary to keep the airway open as determined during the sleep study. This is the case even when the higher pressure is needed only a fraction of the time.

CPAP.com 100% Price Protection Guarantee

When you shop with us, we want you to be confident that you are receiving the best available price. If this items goes on sale or you spot an online or retail competitor with a lower price within seven days of your purchase, let us know, and we will credit you the difference.

"Super helpful, fast shipping, friendly assistance, great selection, I love this company."

- Verified Customer, 10/25/22

★★★★★

(249)

Read Reviews

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Philips Respironics

ResMed

2 Years

31 dB

27 dBA

26.6 dBA

Yes

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Customer Reviews

See what other customers are saying.

Overall Rating

★★★★★

4.8 249 Reviews

5 Stars

209

4 Stars

3 Stars

2 Stars

1 Stars

★★★★★

Verified purchase | Feb. 05, 2011

Very happy with my M series auto cpap. is quiet, responsive. I very rarely wake up with inadequate flow or too much flow.

★★★★★

Verified purchase | Jul. 04, 2010

It works very quiet. I can sleep very well using this new machine.

★★★★★

CPAP Purchase

Verified purchase | Jun. 30, 2010

I am very happy to own the Respironics M Series Auto CPAP w/ Aflex. I looked everywhere on the web and the item is currently unavailable in fact my unit was shipped at the same time as the item was taken off the CPAP.COM web site listed as discontinued. This CPAP works for me and is the same model as what I already have. However it was only while doing my research that I found out I was not utilizing the unit in Auto/Aflex modes. I immediately noticed an increase in energy and restfullness at night.

★★★★★

Verified purchase | Jun. 25, 2010

Excelent way to buy all your CPAP stuff. They deliver on time (i chose next day deliver) and the staff was so kindly to speak slowly and understand me with some issues I had. I bought using my brazilian credit card and had it delivered to a friend of mine who lives in Florida. I dont know how does it work to deliver overseas. Thank you CPAP.COM. Excelente maneira de comprar tudo o que voce precisa de CPAP. A entrega foi rapida (comprei com entregar para o dia seguinte) e o pessoal foi compreensivo e falou devagar quando liguei sobre alguns problemas que eu tive com meu cartao. Comprei com meu cartao brasileiro e pedi para entregar a um amigo que mora na Florida. Nao sei como funcionarios para entregar em outros paises. Obrigado a equipe da CPAP.COM.

★★★★★

M SERIES AUTO CPAP W/A-FLEX

Verified purchase | May. 18, 2010

THIS IS THE QUIETEST MACHINE I HAVE EVER OWNED. ANY MACHINE WILL GIVE YOU AIR SOUND BUT APART FROM THAT THE A-FLEX IS GREAT. THEY SHOULD HAVE HAD A TIMER THAT TURNS OFF THE LIGHTS ON THE BUTTONS. I GUESS THAT WILL HAPPEN ON THE NEXT MACHINE. THE SIZE IS GREAT FOR TRAVEL.

★★★★★

What a wonderful change!

Verified purchase | May. 13, 2010

I love this new unit. It may be a little noisier than a traditional CPAP, but the difference made by A-Flex is well worth it. I highly recommend this unit.

M Series Auto CPAP with A-Flex

This item has been discontinued by the manufacturer.

Check out the newer model

Get Your Sleep Back

M Series Auto CPAP Machine

M Series Auto CPAP Machine

Learn More About Your New Machine

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"Super helpful, fast shipping, friendly assistance, great selection, I love this company."

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