Honeywell HFD-135 User Guide - Page 4

HFD-135 OM English.qxd 10/14/05 5:35 PM Page 4 REMOVING / CLEANING THE IFD™ FILTER This IFD™ air purifier is equipped with an electronic filter Fig. 5 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™ Air Purifier, the 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 Fig. 6 Fig. 7 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. Fig. 8 Fig. 9 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). Fig. 10 Fig. 11 To clean the IFD™ filter: • After removing the IFD™ Filter from the air purifier, gently 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™ filter. • 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. 4