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Respironics PR System One DS550 REMstar Auto CPAP with A-Flex and Heated Humidifier
Model: DS550HS

Respironics PR System One DS550 REMstar Auto CPAP with A-Flex and Heated Humidifier
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This product is discontinued. Respironics upgraded this model to their latest REMStar 60 series in March 2012.

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Respironics PR System One DS150/DS250(Plus)/DS450(Pro)/DS550S(Auto) Feature Comparison

This bundle includes the PR Auto CPAP Machine and Humidifier.

The REMstar Auto A-Flex is a CPAP (Continuous Positive Airway Pressure) device designed for the treatment of Obstructive Sleep Apnea (OSA). It can deliver CPAP therapy or Auto-CPAP therapy.

The REMstar Auto A-Flex device is Phillips most recent development for auto CPAP machines in 2009. It can function for both CPAP therapy and Auto CPAP therapy. The device has been engineered with excellent features such as a ramp function, which allows the operator to lower the pressure when sleeping. The machine also automatically and gradually increases air pressure to the desired level. The device is package together with a humidifier.

What does the Respironics REMstar Auto A-Flex CPAP offer?

  • The latest platform for System One humidity control along with the Dry Box technology - The updated System One platform guarantees exceptional humidification control that prevents water damage, protecting your investment.
  • The latest platform for System One resistance control - Offers the best pressure delivery irrespective of the mask that is used.
  • Built in advanced event detection - Identifies changing conditions and informs the healthcare practitioner of the need alternative therapies
  • Patented flex family technologies – Simply provides the best in patient comfort with industry leading standard of proven pressure relief.
  • An enhanced encore data management and reporting - Provides sophisticated patient management strategies for better compliance
  • Two possible modes in CPAP and Bi Level capabilities and remote  switching - Allows healthcare providers the convenience and advantage of having both options in one unit.
  • Enhanced humidity output and control offers five relative humidity settings at the patients choosing - Provides optimum comfort during therapy.
  • Excellent mask fit feature - Provides patients the capability to check mask seal integrity, providing healthcare providers insight on pressure increases during usage.
  • Back lit screen - Provides easy viewing of functions even in the dark.
  • Improved filtration consisting of ultra fine filters - Provides maximum comfort and is included with each package.
  • Two tubing options of 15mm and 22mm - Providing the best customization possibilities
  • Multilingual display options – User friendly display options that are available in English, French, and Spanish.

Modes found in the REMstar Auto A-Flex

  • CPAP Mode: provides continous and constant levels of positive airway pressure with RAMP options if prescribed by your healthcare provider to reduce and gradually increase pressure to therapeutic requirements providing optimum sleep
  • CPAP and C Flex Mode: to provide pressure relief when exhaling for comfort and customization to patient requirements
  • CPAP and C Flex+ Mode: provides pressure relief after inhalation inhalation and tat the start of exhalation
  • Auto CPAP Mode: for spontaneous adjustment of CPAP therapy to patient requirements
  • Auto CPAP with C- flex Mode: provides pressure relief when exhaling for optimum comfort and convenience
  • Auto CPAP with C+flex Mode: for pressure relief after inhalation and the beginning of exhalation providing optimum comfort and response to patient needs

No Refunds, Returns or Exchanges on Open Products Except for Warranty/RMA process or Mask Assurance.

HCPCS CPAP Code(s): E0601 (APAP), E0562(humidifier)

Modes of OperationC-Flex, C-Flex+, A-Flex
Pressure Range:4 to 20 cm H2O
Ramp Time:0 to 45 min. (5-min. increments)
Ramp Pressure:4 to CPAP; patient-adjustable
Dimensions:6.5" L x 10.75" W x 4" H
Weight with Heated Humid:4.8 lbs/ 1kg
Filters:Pollen and ultra-fine
Device Set-up:LCD/keypad
Data Storage Capacity:Display: 7 and 30 day averages SD Memory Card(more than 1 year)
Data Storage Content:Detection & Reporting (SD Card more than 1 year) >> Hours of Use, Visual Inspection Compliance, Apnea Hypopnea Index, Flow Limitation, Respiratory Effort Related Arousal, Snore, Leak, Clear Airway Apnea, Obstructed Airway Apnea, Hypopnea, Periodic Breathing
Compliance Meter:Breathing detection
Altitude Compensation:Automatic
Electrical Requirements:100 - 240 VAC, 50/60 Hz
Humidification:Integrated Heated Humidifier and Pass-over Humidifier
Warranty:2-Year Manufacturer Warranty
Special Features :Lighted EDs, Auto on/off, mask off alert, patient reminders
  • Respironics PR System one REMStar Auto CPAP Machine with A-Flex
  • System One humidifier
  • Travel Bag
  • User Manual
  • Performance Tubing
  • Power Adapter (100v-240v AC auto adaptive; world travel ready)
  • FREE filters for three years -- only from
  • Smart Card
  • by James L Date Added: Thursday 14 June, 2012
    This machine is good but it shows "service required" after one year use. I had to return it to for service.

    Rating: 4 of 5 Stars! [4 of 5 Stars!]
    by Sorin T Date Added: Wednesday 06 June, 2012
    When I bought the medical device Respironics REMstar Auto CPAP System One PR with A-Flex and heated Humidifier SKU: DS550HS, i never thought I could be so happy with the performance and features that it offers. Basically now I can not part with it. Thanks for promptness Respshoppe company completing the transaction and providing quality products.

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by MARTY D Date Added: Wednesday 11 April, 2012
    I picked the respironics as it is a great little performer easy to use very reliable and quiet. And the great service here at Resphop can not be surpassed, you order and you get at a great price. Unless it is the Aussie Resmed brand which can not be sent back to where it was made :)

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by valentina k Date Added: Saturday 31 March, 2012
    have you this aparat,how much kostet that you shipping in serbien-thank you

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by Diana L Date Added: Wednesday 02 November, 2011
    Muy buen equipo. Estoy muy contento con la compra. Saludos desde Santiago de Chile.

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by Sylvio F Date Added: Sunday 23 October, 2011
    I have used this machine for some time now and it's very easy to adapt to it, we don't even feel we are using the system, very quiet. With a good mask, it's a perfect pair.

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by James K Date Added: Wednesday 28 September, 2011
    I bought this machine from the Respshoppe and I have never slept better. My wife said it is very quiet. Thank you for a good product .

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by MARTY D Date Added: Friday 04 March, 2011
    This machine is very well priced and has the features we all need. I was so happy with the service I recieved and the prompt delivery. Also the supply of filters is a great idea.........thnx again

    Rating: 5 of 5 Stars! [5 of 5 Stars!]
    by Troy D Date Added: Saturday 09 October, 2010
    I brought this machine from the Repshop and it works well and have had no problems .The main reason for writing this reveiw is for the great service that I recieved from the Repshop.They always return your emails promptly and help where they can. Thanks again Repshop for a great service . You will be the first place I will at shop when I require additional equipment.

    Kind Regards


    Rating: 5 of 5 Stars! [5 of 5 Stars!]
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