System One REMstar PLUS 250 CPAP Machine with C-Flex (DISCONTINUED)

Philips Respironics System One REMstar PLUS 250 CPAP Machine with C-Flex (DISCONTINUED)

4.86 Average Rating of 7 Reviews Read Reviews

Discontinued Item:

For Reference: Discontinued June 2013


Flex Family Technologies - The REMstar Plus Features C-FLEX
Respironics natural and clinically-proven "flex" technologies enhance traditional pressure therapy to improve comfort and increase compliance. Thanks to the advanced Digital Auto-Trak algorithm that detects the onset of inspiration and exhalation, the REMstar Plus delivers just the right pressure relief for every breath, making it easier for patients to adapt to therapy.

SYSTEM ONE CPAP HEATED HUMIDIFIERSystem One Humidity Control with Dry Box
Many CPAP/APAP users find that the addition of heated humidity to their sleep therapy system improves comfort and helps with overall compliance. The optional System One Heated Humidifier delivers optimum humidity, drastically reduces rainout, and provides ultimate comfort throughout the night by analyzing and adjusting to ambient temperature, changing environmental conditions, relative humidity, and therapy flow. Revolutionary Dry Box technology isolates the humidfier's water source from the inner workings of the device to protect against water damage.

Standard Therapy Reporting
The System One REMstar PLUS tracks hours of use and provides information on overall patterns of use on screen and via the included SD Data Card.

^literature~ ^web links~

Product Information

  • Manufacturer Philips Respironics
  • In the Package PR System One REMstar Plus CPAP with Heated Humidifier, SD Data Card, Carrying Case, Filters (2 Reusable Foam Filters Included, Optional Ultra Fine Filters Available Separately), 6-Foot Performance Tubing, Printed Users Manual, Power Cord & External AC Power Supply, 2-Year Manufacturer's Warranty (CPAP Only).
  • Part Number(s) DS250S (CPAP), DS250HS (CPAP with Heated Humidifier)
  • HCPCS Code E0601
  • GTIN / UPC Code
  • Prescription Item Prescription required for the purchase of this item.

Physical Specifications

  • Size (Approx) CPAP = 7 in x 5.5 in x 4 in CPAP with Humidifier = 7 in x 10.75 in x 4 in Power Supply = 4.5 in x 2.5 in x 1.75 in
  • Weight (Approx) CPAP = 3 lbs CPAP with Humidifier = 4.8 lbs Power Supply = .75 lbs

Performance Specifications

  • Therapy Modes CPAP
  • Pressure Range 4-20 CM H2O
  • Ramp 0 to 45 Minutes (5 Minute Increments)
  • Ramp Start 4 to CPAP Pressure (User adjustable)
  • Sound Levels Average less than 29 dBA
  • Altitude Adjustment Manual
  • Leak Compenstation Automatic
  • Auto On/Off Yes
  • Comfort Technology C-Flex


  • Masks Compatible with all CPAP/BiPAP Masks
  • Tubing Compatible with all Standard CPAP Tubing, Performance Tubing, and Slim Performance Tubing.
  • Humidifiers SystemOne Integrated Humidifier (Optional)

Therapy Data & Compliance

  • Data Included Compliance Visual Inspection Compliance, 7 and 30-day averages

Humidifier Specifications

  • Humidifier SystemOne Integrated Humidifier (Optional)
  • Chamber Capacity 1 1/3 cups (325ml) at Recommended Water Level
  • Humidifier Power Direct Power via CPAP/BiPAP Connection
  • Humidifier Settings 1 - 5

Power Specifications

  • AC (Wall) Power 100-240V, 50-60Hz (Auto Sensing)
  • AC Power Supply Yes


Average Rating of
Total 7 Reviews
  • Best value for CPAP machine

    I bought this to replace an older REMstar Pro w/CFLEX unit that failed. It is slightly smaller, which is good, but the heated humidifier uses less water and seems a bit erratic regardless of the setting. Otherwise - a nice unit. At the discontinued price it is the best value on the market.
    Written by Hal, 2013-06-17
  • PR System One REMstar PLUS 250 CPAP Machine with Heated Humidifier & C-Flex

    A Great Machine Very Quiet and easy to use. I would recommend this machine to anyone. Has all the features of a CPAP machine at double the price. I feel a lot better and rested wish i would have done this years ago.
    Written by Bob. l., 2013-04-15
  • Great Product - Great Service

    After my 15yr cpap machine quit working I found this machine online at Direct Home Medical. Their customer service department was very helpful and guided me through the entire process of replacing my old unit. The new unit arrived promptly (2 days) set correctly and properly packaged. The REMstar Plus 250 is a great machine, super quiet, lightweight and so far working flawlessly. I highly recommend this machine to anyone looking for a great product at a great price from a company who cares about their customers.
    Written by Jim H. , 2013-03-24
  • CPAP Review

    No problems. The machine arrived at the requested levels, etc. The CFLEX is great. Maybe they could add a few more settings (currently 1,2 or 3). Other than that the machine is working fine. I also appreciate the quick service I rec'd with the machine arriving in only a few days. Thanks again
    Written by Lyle W. Jr., 2013-01-29
  • Quiet and Effective

    I've been quite pleased with the performance of this CPAP. Configuration was easy, and it runs very quietly. The humidifier and ramp-up features are nice. I haven't noticed a significant difference with C-Flex enabled. My only tiny complaint is the structure of the humidifier tank - all the contours and ridges make it a bit harder to clean.
    Written by John S., 2013-01-16
  • Nice Machine at a good price

    I was looking for a second machine to use as a backup and for taking on trips. I tried this machine out when I first got it and liked it so much I now use it as my primary machine. It is much quieter and it is easier to add water to the humidifier. DirectHomeMedical's prices were much lower on this machine than anywhere else.
    Written by Nixtaurus, 2012-12-14
  • CPAP

    Very good price, great service and fast shipping.
    Written by Dennis, 2012-11-23