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Starting the device
1. Ensure power is supplied to the device as indicated by a white ring around the therapy
button. The rst screen to display will be the Philips logo, followed by the device model
screen, and then a screen that contains a summary of your therapy. See the “Therapy o
display” section later in this manual for a description of the User Interface (UI) screens.
Note: The device may prompt you to set the language and time. These settings
can always be adjusted from the device settings screen.
2. Put on your mask assembly. Refer to the instructions supplied with the mask.
A small amount of mask leak is normal and acceptable. Correct large amount of mask
leaks or eye irritation by adjusting your mask headgear.
Note: If you are using the device in a bed with a headboard, try placing the
tubing over the headboard. This may reduce tension on the mask.
3. Press the Therapy button on top of the device to turn on airow and begin therapy. The
Therapy button ring will illuminate blue.
Note: If your home care provider has enabled the Automatic On feature, the
device will automatically turn the airow on when you put on your mask
and breathe.
4. Press the Therapy button again to turn o the therapy. The Therapy button ring will
illuminate white.
Note: If your home care provider has enabled the Automatic O feature, the
device will automatically turn the airow o when you take o your mask
and the device recognizes inactivity.