REMstar Auto A-Flex system includes the following items:
- Device
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Side cover panel

- User manual
- SD card
- Carrying case
- Reusable gray foam filter
- Flexible tubing
- Disposable ultra-fine filter (optional)
- Power cord and power supply
- Humidifier (optional)
System Overview
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.
When prescribed for you, the device provides several special features to help make your therapy more comfortable. The ramp function allows you to lower the pressure when you are trying to fall asleep. The air pressure will gradually increase until your prescription pressure is reached. You also have the option of not using the ramp feature at all.
Additionally, the C-Flex, C-Flex+ and A-Flex comfort features provide you with pressure relief when you exhale during therapy.
Available Therapies
The REMstar Auto A-Flex device delivers the following therapies:
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CPAP – Delivers Continuous Positive Airway Pressure; CPAP maintains a constant level of pressure throughout the breathing cycle. If your health care professional prescribed ramp for you, press the Ramp button to reduce the pressure and then gradually increase the pressure to the therapeutic pressure setting so that you can fall asleep more comfortably.
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CPAP with C-Flex – Delivers CPAP therapy with pressure relief upon exhalation to improve patient comfort based on patient needs.
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CPAP with C-Flex+ – Delivers CPAP therapy with pressure relief taking place at the end of inhalation and at the start of exhalation to improve patient comfort based on patient needs.
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Auto-CPAP – Delivers CPAP therapy while automatically adjusting the pressure level to meet the patient’s needs.
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Auto-CPAP with C-Flex – Delivers Auto-CPAP therapy with pressure relief upon exhalation to improve patient comfort based on patient needs.
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Auto-CPAP with A-Flex – Delivers Auto-CPAP therapy with pressure relief taking place at the end of inhalation and at the start of exhalation to improve patient comfort based on patient needs.

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