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5.9 Installing/Replacing the Air Filters
CAUTION
A properly installed, undamaged Philips Respironics blue pollen filter is
required for proper operation.
The device uses a reusable blue pollen filter that can be rinsed and a disposable light-blue ultra-fine filter. The
reusable blue filter screens out pollens, while the light-blue ultra-fine filter provides more complete filtration of
very fine particles.
The reusable blue filter must be in place at all times when the device is operating. The ultra-fine filter is rec-
ommended for people who are sensitive to tobacco smoke or other small particles.
The reusable blue filter is supplied with the device. A disposable light-blue ultra-fine filter may also be in-
cluded. If your filter is not already installed when you receive your device, you must at least install the reusa-
ble filter before using the device.
This device has an automatic air filter reminder. Every 30 days, the device will display a message reminding
you to check your filters and replace them as directed.
NOTE
This message is a reminder only. The device does not detect the performance
of the filters nor does it recognize when a filter has been rinsed or replaced.
