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11 41555-01
Air Purier Maintenance
Fig. 9
PRE-FILTER
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6. Place the front grill back onto the unit. First, line up the tab on the bottom
of the grill with the recess on the purier base and then push the top of the
grill forward until it is closed. Refer to Figs. 6 and 7 (pg. 7). NOTE: This unit
will not operate unless the grill is in the correct position.
7. Plug in the air purier.
8. To reset the counter to zero hours and turn o the indicator, simply press and
hold the PREFILTER RESET key for three seconds. Then, you must release
the reset key and then press and hold the pre-lter reset key again for three
seconds to turn o the lter indicator.
Cleaning the Filter
he PermaLife™ Filtration System uses a cleanable lter that never has to be changed, only
cleaned. When the lter exceeds 2800 hours (approximately 4 to 6 months of use), the Filter
Life Counter will display 0% life remaining and the Filter indicator will ash (refer to Filter
Life Counters for additional information, pg. 8). This is a reminder that you should check
the lter and clean if necessary. The proper time to clean the lter depends on usage and
the environment. Use the following list to help determine if the lter should be cleaned:
• Compare the color of the lter to the color coded chart on the inside of the housing. If
the lter color matches the darkest color on the chart, you should clean the lter.
• If you notice a decrease in air output or an increase in noise at any time during normal
operation, the lter may be clogged. Clean the lter to return to normal operation.
To clean the lter and reset the Filter Life Counter:
1. First, turn o and unplug the air purier.
2. Next, remove the front grill. Place your ngers under the handle on the grill
and pull forward, then up. Refer to Figs. 4 and 5 (pg. 6).
Continued