FILTER CLEAN INDICATORS HHT-215, HHT-217, HHT-219, HFD-110, HFD-112 AND HFD-015
This air purifier is equipped with an electronic filter clean monitor to serve as a convenient guideline for
cleaning the ifD
Micro-filter and pre-filter based on the air purifier's hours of use and operating power
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level. This is beneficial because a filter's life depends on the amount of air and contaminants drawn
through it. As you operate your QuietClean
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 clean monitor.
Resetting the Filter Clean Monitor (HHT-215, HHT-217, HHT-219 Only)
After cleaning the ifD
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• Once the ifD
Micro-filter has been checked and cleaned, the filter clean monitor
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will need to be reset.
• With the air purifier unit powered on, press and hold the Filter Reset button for
approximately 10 seconds or until the filter bar is clear (Fig. 9a) and LED light goes out.
Filter Clean Indicator Operation (HFD-015, HFD-110, HFD-112 Only)
• When the filter clean indicator light illuminates, (Fig. 9b) it is time to inspect/clean
the ifD
Micro-filter.
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• Once you have cleaned the filter, press and hold the Filter Reset button until the LED light goes out.
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.
REMOVING / CLEANING THE IFD
To remove the ifD
Micro-filter:
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• Make certain that the air purifier is OFF and the unit is
unplugged.
• Push the Filter Release button and then gently lift the
filter assembly (Fig. 10a & 10b). The filter assembly will
only release if the button is pushed.
• Remove the pre-filter (see "Cleaning the Pre-filter"),
and set aside.
To clean the ifD
Micro-filter:
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• (Optional) After removing the ifD
a vacuum cleaner with a nozzle or brush attachment along the filter to pick-up
tiny particles (Fig. 11). Repeat on both sides.
If your ifD
Micro-filter appears to have dirt that has not been removed by
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vacuuming, or if you choose not to vacuum the filter first, please follow the steps
below to wash the ifD
• Turn the power off and unplug the air purifier.
• Remove the ifD
Micro-filter from the unit.
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• You can simply rinse the ifD
cleaning, fill the sink with lukewarm water and add a few drops of mild dish
soap (Fig. 12).
• 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.
• Place the filter with the honeycomb side down on a plush towel (Fig. 13).
6
®
filter, you need to reset the filter clean monitor.
MICRO-FILTER FOR ALL MODELS
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Micro-filter from the air purifier, gently run
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Micro-filter.
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Micro-filter under the faucet, or for more thorough
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Air Purifier, the filter clean monitor bar
Fig. 10a
Fig. 9a
Fig. 9b
Filter
Indicator
Reset
Light
Button
Fig. 10b
Fig. 11
Fig. 12
Fig. 13