5User Manual
Installing/Replacing the Air Filters
Caution: A properly installed, undamaged Philips Respironics blue pollen lter is required for proper operation.
The device uses a blue pollen lter that is washable and reusable, and a light-blue ultra-ne lter that is disposable.
The reusable blue lter screens out normal household dust and pollens, while the light-blue ultra-ne lter provides
more complete ltration of very ne particles. The reusable blue lter must be in place at all times when the device is
operating. The ultra-ne lter is recommended for people who are sensitive to tobacco smoke or other small particles.
The reusable blue lter is supplied with the device. A disposable light-blue ultra-ne lter may also be included. If your
lter is not already installed when you receive your device, you must at least install the reusable lter before using the
device.
This device has an automatic air lter reminder. Every 30 days, the device will display a message reminding you to
check your lters and replace them as directed.
Note: This message is a reminder only. The device does not detect the performance of the lters nor does it
recognize when a lter has been cleaned or replaced.
1. Lift up on the lter access door and swing open. If replacing, pull out the old lter assembly.
2. If applicable, place a clean, reusable blue pollen lter (1) on top of a new, optional disposable light-blue ultra-ne
lter (2) and rmly snap them together.
3. Place the new lter assembly back in the side of the therapy device. Swing the door closed.
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