Use the brush attachment with your vacuum cleaner. Run the attachment along both sides of the True HEPA filter, cleaning thoroughly between the accordion folds of the filter. Be sure to reset the indicator light after cleaning.
It's a recessed button right by the words "clean filter". I had to use my fingernail to press it, but a thin pen or nail file would work. It is a long oval shape. By Kelly L.
HoMedics Professional HEPA Air Cleaner AR-10 User Manual â€¢ Cleaning and. The air cleaner is equipped with a CLEAN FILTER indicator to let the user know .
. Air Purifier? (Filter Indicator Light Reset). There is only one filter change button for both the HEPA and Carbon filters. Pressing. Make sure air purifier is on.