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Philips Respironics

Gently Used System One REMstar Auto CPAP System with AFLEX 

with and without Heated Humidifier

Respironics System One REMstar Auto with AFLEX DS560

SKU # 550HS, 550P




Product Information:

With the release of the System One Generation REMstar Auto, Philips Respironics continues its line of small, quiet, compact CPAP devices, with added features such as Resistance Control - a feature that allows the device to take into consideration the mask-type being used, when delivering set pressures.

As with previous generations of Respironics CPAP, the pressure range is 4cm-20cm h20. Dimensions on the System one devices are 6.5" x 5 " x 4" and weigh in at just over 2 lbs (without heated humidifier). The System One Series REMstar also keeps the Digital Auto-Trak technology on-board. Auto-Trak increases comfort by sensing the change in flow that represents the start, or end of a breath, and allows the device to react quickly to changes with appropriate pressures.

The DS550 offers two modes of therapy, CPAP mode, and of course Auto CPAP Mode. CPAP Mode allows for programming of a single set pressure, with expiratory pressure relief if needed (CFLEX, or AFLEX). Auto CPAP Mode allows for the programming of a maximum and minimum pressure range. Given this range the device algorithm uses these parameters, as well as information (biofeedback) gleaned from the individual using the device, to consistently adjust the pressure, to provide only the least amount of pressure needed, for any given breath. This type of device, an auto adjusting or auto CPAP machine, is ideal for CPAP users that no longer know their therapeutic pressure, or for individuals starting on therapy without a known therapeutic pressure.


This unit can run on any voltage from 110-240V, and is capable of running off a 12volt power source. The DS550 REMstar Auto has comprehensive data recording/reporting, which shows not only basic compliance information, but also details such as AHI, and leak rates, which are essential in gauging the efficiency of the device. 

6 Month In-House Warranty on this low-hour (under 2000 hours) device

Gently Used Respironics REMstar Auto System One DS550 Auto with AFLEX System Standard 6 Hose, Without Heated Humidifier, Power Supply, Travel Bag, and Instructional Manual 

(Free Shipping, no Sales Tax)



Add The Heated Humidifier:

Respironics Series System One 50 Series Heated Humidifier with Water Chamber


Add a 1-Year Extended CPAP Machine Warranty (18 Months Total Warranty)



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