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Operation
Cleaning Your Air Purifier
Proper maintenance of your Hunter Air Purifier will help ensure years of trouble free
service.
Follow these steps to properly maintain your air purifier:
1. Approximately every 90 days, the outside of the unit should be cleaned with a soft,
damp cloth.
2. If needed, the front grill can be removed from the unit and cleaned with soapy water.
Simply remove the pre-filter before exposing the grill to water.
3. Follow the instructions in Changing the Pre-Filter and Changing the Filter (pgs. 11 and
12) to determine when and how to replace the filters.
NOTES:
• The air purifier must be unplugged during the cleaning process.
• Be sure the unit is completely dry before plugging in and using.
• Never immerse unit in water.
Changing the Pre-Filter
When the Pre-Filter exceeds 1400 hours (refer to Filter Life Counters for additional infor-
mation, pg. 8), the Pre-Filter Life Counter will display 0% life remaining and the Pre-Filter
indicator will flash as a reminder that you should replace the pre-filter. To maintain proper
odor-removing capability and overall filtration performance, the pre-filter should be
changed every 1400 hours (approximately 3 months of use). If necessary, the pre-filter
can be changed more often. Proper maintenance of the pre-filter will help extend the life
of the HEPAtech
®
filter. Refer to Obtaining Replacement Filters (pg. 13) if you need help
finding replacement filters.
To change the pre-filter and reset the Pre-Filter Life Counter:
1. First, turn off and unplug the air purifier.
2. Next, remove the front grill. Place your fingers in the recesses on either side of
the top of the grill and pull firmly.
3. The pre-filter is attached to the inside of the grill with hook tape. Pull gently on
the pre-filter to remove it.
4. If needed, use a soft damp cloth to wipe off the grill.
5. Install the new pre-filter by placing it in the grill and pressing gently on the pre-
filter so that it adheres to the hook tape. You may notice a few black particles
coming off the pre-filter. Those particles are part of the odor-removing activated
carbon and will be collected on the filter during regular use.
