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M Series Auto CPAP Machine with C-Flex

BY Philips Respironics Item #DS500S
124 Reviews

This item has been discontinued by the manufacturer.

Check out the newer model

Need replacement parts and accessories? Shop now 
Click image to expand
124 Reviews

This item has been discontinued by the manufacturer.

Check out the newer model

Need replacement parts and accessories? Shop now 

M Series Auto CPAP Machine Overview

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 patented C-Flex comfort feature, self-adjusting pressure, and powerful clinical data features, on-board.

This model is no longer available. We suggest the DreamStation 2 Auto CPAP with Heated Humidifier as a suitable replacement for the M Series Auto. The DreamStation Auto with Humidifier bundle includes the machine and heated humidifier for one low price. The DreamStation 2 is also one of the quietest CPAP machines on the market today, operating at only 25.8 decibels.

C-Flex vs. Traditional CPAP: Brown University Study

Respironics has added their easy breathing C-Flex technology to the REMstar Auto M Series. Now you can have both the comfort of auto-titrating pressure with the comfort of easy exhalation, all in one CPAP.

The REMstar Auto M Series with C-Flex is is an auto-adjusting CPAP machine which is set for a range of pressures, then seeks out and delivers the lowest level of pressure needed to keep the airway open. With CFLEX technology, not only with the pressure level vary as needed, but it will drop with each exhalation.

The auto-adjusting CPAPs were designed for patients who are unable to participate in a sleep study or whose pressure needs vary during the night according to their stage of sleep or sleep position. However, any patient will receive very comfortable therapy from this type of CPAP.

The REMstar Auto M Series CPAP with REMstar Heated Humidifier includes the following features:
  • Automatically adjusts pressure based on air-flow limitations from snoring, hypopnea or apnea events.
  • C-Flex technology offers a more comfortable way to deliver sleep therapy by giving pressure relief at exhalation. The amount the pressure is lowered is determined by one of three settings that you can adjust to your comfort. You can read more about C-Flex by clicking here:
    C-Flex Brochure
  • The component REMstar M Series Heated Humidifier integrates with the REMstar Auto M Series to become one unit with only one hose and one power cord.
  • Automatic start and stop operation.
  • Mask leak alert.
  • Automatic altitude compensation adjustment.
  • International power supply to operate on any AC current from 110 to 240 without adjustment to the machine. (An adapter may be needed to plug the CPAP into a wall outlet outside the US.)
  • Direct DC operation without the need for a DC/AC inverter, just a cable and adapter which are sold separately.
  • Two washable, reusable pollen filters are included, as well as one optional ultra-fine filter.
  • Two year manufacturer warranty against defects.

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