Honeywell High Performance Air Purifier HFD-135 Manual page 4

HFD-135 OM English.qxd
REMOVING / CLEANING THE IFD
This IFD ™ air purifier is equipped with an electronic filter
indicator to serve as a convenient guideline for cleaning the
IFD ™ and pre-filter based on the air purifier's hours of use
and operating power level. This is beneficial because a
filter's life depends on the amount of air and contaminants
drawn through it. As you operate your IFD
filter bar indicator will fill-up from left to right. The bar will
continue to fill as you use the unit. Once the bar is
completely full, the Filter Reset button will illuminate – it is
time to clean the filters and reset the filter indicator.
To reset the filter clean indicator:
• With the power on, press and hold the Filter Reset button
for 10 seconds, or until the filter bar clears itself (Fig. 5).
NOTE: Depending upon your individual usage (environment,
hours and power level of operation), you may need to check
and clean the filters more or less frequently.
To remove the IFD ™ filter:
• Make certain that the air purifier is OFF and the unit is
unplugged.
• Remove the rear door panel by turning the rear knob
counter-clockwise and lifting the panel out and up.
• Gently tug the filter basket door towards you – the basket
will first rotate and then slide out of the unit (Fig. 6).
• Continue to slide the basket and remove from the filter
swing arm (Fig. 7).
• Take the IFD ™ filter out of the filter basket and clean the
filter (Fig. 8).
To clean the IFD
™ filter:
• After removing the IFD
run a vacuum cleaner with a nozzle or brush attachment along the filter to pick-up tiny particles (Fig. 9).
Repeat on both sides.
If your IFD ™ filter appears to have dirt that has not been removed by vacuuming, please follow the steps
below to wash the IFD ™
• Turn the power off and unplug the air purifier.
• Remove the IFD ™ filter from the unit.
• Fill the sink with lukewarm water and add a few drops of mild dish soap (Fig. 10).
• Gently swish the filter in the soap solution to clean.
• Soak the filter for 2-3 minutes. Do not leave for an extended period of time.
• Rinse the filter with clean tap water.
• Shake the filter to remove any excess water (Fig. 11).
• Place the filter with the honeycomb side down on a plush towel.
• Note that the filter may still be discolored even after washing.
This is acceptable and will not affect performance.
• Allow the IFD ™ filter to dry for a few hours or overnight.
• When the IFD ™ filter is completely dry, place back into the air purifier.
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10/14/05 5:35 PM
™ FILTER
™ Air Purifier, the
™ Filter from the air purifier, gently
filter.
Page 4
Fig. 5
Fig. 6
Fig. 8
Fig. 10
Fig. 7
Fig. 9
Fig. 11