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    Philips Respironics PR System One REMstar BiPAP AVAPS Machine

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    1-800-356-5221 Mon-Fri 8AM-8PM CST,
    Sat 8AM-5PM CST

    Product Overview

    The PR System One REMstar BiPAP AVAPS Machine is an intelligent solution that is one of the most versatile machines on the market for those who need Non-Invasive (NIV) Ventilatory Support. System One technologies like Humidity Control with Dry Box and Average Volume Assured Pressure Support (AVAPS) are helping NIV users achieve effective therapy.

    Manufactured by Philips Respironics.

    Product Features

    The PR System One REMstar BiPAP AVAPS Machine comes standard with carrying case, bag, memory card, manuals and now comes packaged with the Respironics Performance Tubing.

    System One Humidity Control (Optional)

    The PR CPAP humidifier and water chamber design are breakthroughs for managing rain-out and water damage. System One Humidity Control technology analyzes ambient temperature and patient airflow to reach relative humidity at the mask. Choose from 5 levels of relative humidity. System One is the first humidifier in the industry which accounts for room humidity. Sensors, inside and outside the CPAP machine, closely monitor changes in humidity and help to prevent condensation from forming inside the tube.

    Dry Box technology is another breakthrough in reducing water damage to the CPAP. Several unique designs are incorporated into the humidifier to prevent water from exiting the chamber. To start, the air outlet port has been moved from the side of the humidifier onto the top. This centers the entire delivery; minimizing the total water displacement around the hole. The water chamber is outfitted with one-way valve, between the machine and the humidifier. Any water that manages to escape the chamber gets trapped within the Dry Box, which acts as a reservoir for any water ingress past the valve.

    System One and Dry Box Technology make it possible for the Respironics machines to be truly spill-free. This humidifier, even with a chamber filled to the "Full" indicator line, can be tilted, shaken, and even turned upside down without water leaking back into the device.

    Digital Auto-Trak Algorithm and Bi-Flex Technology

    Digital Auto-Trak Sensitivity is the brains behind Respironics' Flex Technology and AVAPS feature. A patented algorithm monitors breathing patterns and responds to abnormal pressure changes. The Auto-Trak system measures variable triggers and cycle thresholds, then adjusts pressure automatically to provide effective sleep therapy. The Digital Auto-Trak components are always active and the system reacts to the first component that detects a change in sleep, providing maximum sensitivity.

    Bi-Flex Technology allows the PR BiPAP to track each breath and helps provide pressure relief during three critical points in the breathing cycle. Pressure is reduced by half centimeter increments during the transition from exhalation to inhalation, inhalation to exhalation and during exhalation.The Bi-Flex setting can be adjusted up to 1.5cm of water pressure for maximum comfort. Bi-Flex comes standard with the PR BiPAP Series and can be turned on when in BiLevel Mode and Auto Bi-Level Mode (also known as Spontaneous Mode).

    The PR BiPAP ST mode overrides the Bi-Flex feature and responds to breathing patterns in the same manor, increasing pressure when you start to inhale and decreases pressure when you start to exhale. Unlike the BiLevel mode with Bi-Flex, Spontaneous Timed (S/T) Mode allows users to set the machine's Breathe Rate and Rise Time. Setting the Breathe Rate lets the machine know how many breaths per minute the system uses to calculate when to automatically switch from exhalation to inhalation. Rise Comfort is the time it takes for the device to change from EPAP to IPAP and can be set as follows: (0ff=150, 1=200, 2=300, 3=400 msec).

    AVAPS Feature

    Average Volume Assured Pressure Support (AVAPS) is an advanced noninvasive ventilation feature that automatically adjusts pressure support while maintaining a target tidal volume. The PR BiPAP AVAPS works in the following modes:

    Spontaneous. S Mode responds to users needs by increasing pressure when you start to inhale and decreases pressure when you start to exhale. The unit will not initiate a breath if you do not inhale.

    Spontaneous Timed. ST Mode is similar to S Mode, but ST Mode will initiate a breath and automatically starts IPAP. When IPAP starts, the machine controls the duration of IPAP and automatically lowers pressure to EPAP within a set time.

    Pressure Control. PC Mode responds to inhalation breathing by increasing the pressure. The length of inhalation is controlled by the machine. If an inhalation is not detected within a set time, the device will initiate a breath. Unlike Spontaneous Timed, PC Mode does not automatically decreases the pressure for exhalation within a set time.

    Timed. T Mode is an optional bi-level mode in which the machine manages breathing independent of spontaneous airflow changes. IPAP and EPAP automatically alternates based on a set time.

    AVAPS can be turned on with any of the four modes above. When active, therapy pressures vary based on the total volume of air used during each breath.

    Encore Data Management and Reporting

    On-board memory has been added to the BiPAP as well as storing information on a generic SD Memory card and reads through any SD card reader. Use EncoreViewer Software to monitor therapy effectiveness through a series of reports. A new Patient Flow and Event report enables users to view a weekly breakdown on per-breath basis. Patient data is used to identify particular conditions and events with specific colors.


    This Product Includes...

    Product Specifications


    Size 18 cm x 14 cm x 10 cm (7" L x 5.5" W x 4" H)

    Weight Approximately 1.36 kg (3 lbs.)

    Therapy parameters

    Modes CPAP, S, ST, PC, T

    Bi-Flex Available on S mode

    Timed inspiration 0.5 to 3.0 seconds

    IPAP 4 to 25 cm H2O

    EPAP 4 to 25 cm H2O

    CPAP 4 to 20 cm H2O

    Ramp 0 to 45 minutes

    Breath rate 0 to 30 BPM


    Mode availability AVAPS available on S, ST, PC, and T modes

    Target tidal volume 200 to 1500 ml

    IPAPmin From EPAP to IPAPmax

    IPAPmax From IPAPmin to 25 cm H2O

    Patient alarms available

    Patient Disconnect, Apnea, Low Minute Ventilation, Low Tidal Volume (AVAPS modes only)


    Operating Temperature 5° C to 35° C (41° F to 95° F)

    Relative humidity 15 to 95%

    Atmospheric pressure 101 kPa to 77 kPa (0-2286 m / 0-7500 ft) N/A

    Sound level < 30 dBA typical at 10 cm H20 pressure


    AC voltage source 100 to 240 VAC, 50/60 Hz, 2.1 A

    DC power 12 VDC, 5.0 A

    Displayed parameters

    Patient pressure, leak, tidal volume, minute ventilation, and respiratory rate

    Filters Foam and optional ultra–fine

    Data Storage Capacity

    Display Compliance VIC. 7-Day and 30-Day averages

    SD Card 1 year (daily details with flow waveforms)

    On-board up to 6 months

    Warranty Two years; replace with new

    Max Exposure Heat for Machine Machine should not be exposed to heat greater than 140 degrees Fahrenheit always offers these services:

    • 8 am to 8 pm CST Toll Free Phone and Email Support
    • 24 hour access to our Support Forum
    • Learning Center for information on sleep apnea and cpap equipment
    • Consumer Purchasing Trends Reports
    • Warranty Services for all items purchased through
    • Insurance Compliant Invoices
    • Free Prescription Request System

    Manufacturer Note

    • A valid prescription is required for the purchase of this product.
    • Philips Respironics products are for sale only to patients within the U.S. and not to other third parties or businesses.
    • All services provided by, including advertisement, ordering, sale, delivery, instruction, and setup of the products are performed solely by and independently of the manufacturer.

    Important Tips

    The prescription required for this machine is the same Rx needed for a BiPAP S/T machine. Please see our Answers section for more on prescription formats.

    Respironics listened to the CPAP community and removed the "blue light" LED. The PR was placed in a dark room and the new power light could barely be seen. No more insomnia from excess system lights. The only common parts shared with the M series is the Power Supply. The PR system comes with a separate, external power brick and allows the overall CPAP to stay compact.

    Manufacturer Warranty
    This machine comes with a 2 Year Manufacturer Warranty. will work with the manufacturer on your behalf if the machine needs repairs. Please follow these steps:

    • Contact us at or 1-800-356-5221 to receive an RMA (Return Merchandise Authorization) Number before returning the equipment
    • Include a note with the machine describing the issue you are experiencing, along with your full contact information to include a return shipping address and the RMA number provided to you
    • Ship only the defective items to at 13235 N Promenade Blvd Stafford, TX 77477
    • Do not return accessory items such as the carry bag, hose or power cords
    • Loaner Machines are available for rental during the warranty process
    • Email updates will be sent to keep you informed as the machine moves through the warranty process
    • will contact the manufacturer on your behalf and handle all shipping between us and the manufacturer
    • The repaired or replaced unit will be returned to you. Shipping charges may apply.

    Please note: The manufacturer warranty is voided by water damage or misuse of the machine.

    Humidifier Modes PR System One Heated Humidifiers Version 1.22 or higher have two modes:

    • Classic
    • System One Humidification

    NOTE: The version of software installed on a machine is displayed on the screen when the unit is plugged into an outlet. The Humidification settings are displayed only when a PR System One Heated Humidifier is attached to the machine.

    Classic Mode
    The CPAP user who wants to control the heat setting on the humidifier should select "Classic" mode settings C1,C2, C3, C4 or C5. The "C" in front of the humidification setting indicates "Classic". This allows you to set the level of humidification.

    System One Humidification Mode
    The CPAP User who wants to allow the technology of the System One Humidification to set the level of humidification delivered based on the humidity present in the room air should select "System One Humidification". The humidification setting will show 1 - 5 but WITHOUT a "C" preceding the number.

    Heating Off
    If set to zero "0", the humidifier will act as a Passover Humidifier.

    System One Resistance Control Settings

    Please reference this link to find the resistance control setting for the different Philips Respironics masks: System One Resistance Control Settings.

    Accessing Humidification Settings:

    1. Humidifier must be attached to the machine
    2. Access the Set Up menu
    3. Scroll down the menu offerings to locate: "System One Humidification"
    4. If set to "On", the technology will set the amount of humidification delivered to the system based on the setting of 1 -5 with 1 being the least and 5 being the most
    5. If set to "Off", the user controls the heat setting based on C1-C5 with C1 being the lowest heat and C5 being the highest heat.

    Power Options

    Universal Power

    This system operates automatically between 110v and 240v AC. When traveling either inside or outside the USA, there are no switches to switch or fuses to change. The machine will automatically sense what voltage is needed and set itself to run on that power.

    The user will need to adapt the plug that goes into the wall to fit the style of outlet socket that is being used. This is simply done with a Power Adapter Plug kit. This is the same type of plug adapter that would be used with a hair dryer or an electric shaver. World Traveler Power Adapter Plugs.

    Universal 12 Volt DC Power Cord

    This machine come equipped with a DC plug on the back of the unit. This allows the user to connect the CPAP to an external DC battery source. The machine can be powered by plugging the 12volt DC Power Cord into a cigarette lighter plug. This is ideal for traveling by car, boat, or recreational vehicle that is equipped with a cigarette lighter plug.

    C-100 Travel Battery Pack for CPAP Machines

    Weighing in at only 1.16 pounds the C-100 Battery is a terrific option for travel. Plus, the C-100 comes with a DC cable and connector peg suitable for use with the PR System One REMstar BiPAP AVAPS Machine so no need to purchase a separate DC cable. This lithium ion battery meets UN Manual Test and Criteria requirements for travel. The C-100 Pack includes many accessories and a handy carry case designed to allow the the cords to be attached with the battery inside the case.

    Respironics Battery Kit with Universal 12 Volt DC Cable

    This portable battery pack is an external lead acid battery that is the ultimate in power, portability and convenience. This battery kit comes with the Respironics battery and the 12 Volt DC Power Cord (connects CPAP to cigarette lighter socket).

    Replacement Parts

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