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This chapter provides instructions on how to:
•
Install the air filters
•
Position the device
•
Connect the breathing circuit
•
Supply power to the device
3.1 I
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Caution: A properly installed, undamaged foam filter is required for proper operation.
The device uses a gray foam filter that is washable and reusable, and an optional white ultra-fine
filter that is disposable. The reusable filter screens out normal household dust and pollens, while
the optional ultra-fine filter provides more complete filtration of very fine particles. The gray reus-
able filter must be in place at all times when the device is operating. The white ultra-fine filter is
recommended for people who are sensitive to tobacco smoke or other small particles.
Two reusable gray foam filters and one disposable white ultra-fine filter are supplied with the device.
If your filters are not already installed when you receive your 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, mesh-
side facing in, towards the device.
2.
Insert the gray foam filter into the filter area as shown in Figure 3–1.
Note:
If you are not using the white disposable filter, simply insert the gray foam filter
into the filter area.
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Disposable Ultra-Fine
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Filter Area
Reusable Gray
Foam Filter
Filter (optional)
(required)
3–1 I
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3-1