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Section 3: Device Setup
3.1 Installing the Air Filter
The device uses a gray foam filter that is washable and reusable, and a white ultra-fine filter that is disposable. The
reusable filter screens out normal household dust and pollen, while the ultra-fine filter provides more complete
filtration of very fine particles. The gray reusable filter must be in place at all times when the device is operating.
The ultra-fine filter is recommended for people who are sensitive to tobacco smoke or other small particles. One
reusable gray foam filter is supplied with the device. A disposable ultra-fine filter may also be included.
If the filter is not already installed when you receive the device, you must
at least install the reusable gray foam filter before using the device. To
install the filter(s):
1. If you are using the white disposable ultra-fine filter, insert it into the
filter area first, with the smooth side facing toward the device.
2. Insert the required gray foam filter into the filter area after the ultra-fine
filter.
Note: If you are not using the white disposable filter, simply insert the
gray foam filter into the filter area.
3.2 Where to Place the Device
Place the device upright on a firm, flat surface somewhere within easy reach of where the patient will use it, at a
level lower than their sleeping position. Make sure the filter area on the back of the device is not blocked by bedding,
curtains, or other items. Air must flow freely around the device for the system to work properly. Make sure the
device is away from any heating or cooling equipment (ex. forced air vents, radiators, or air conditioners).
3.3 Connecting the Breathing Circuit
You will need the following accessories in order to assemble the recommended circuit:
• Philips Respironics interface (nasal mask or full face mask) with integrated exhalation port, or Philips Respironics
interface with a separate exhalation device (such as the Whisper Swivel II)
• Philips Respironics flexible tubing (22 or 15 mm) or heated tubing
• Philips Respironics headgear (for the mask)
Note: See Section 6 for information on how to clean Philips Respironics flexible tubing prior to use. Refer to the
instructions that accompany any other breathing circuit components for any necessary cleaning prior to use.
Complete the following steps to connect the breathing circuit to the device:
1. Connect the flexible tubing to the air outlet on the side of the device.
Note: If required, connect a bacteria filter to the device air outlet, and then connect the flexible tubing to the
outlet of the bacteria filter. When using the bacteria filter, the device performance may be affected. However, the
device will remain functional and deliver therapy.
Note: When using the optional heated tubing, attach the heated tubing to the humidifier’s modified air outlet port,
with the bacteria filter installed in-line, but at the opposing end of the tubing.
2. Connect the tubing to the mask. Refer to the instructions that came with the mask.
3. Attach the headgear to the mask if necessary. Refer to the instructions that came with the headgear.