FAQ What does the Sharp Air Cleaner model KC-850U do? The air cleaner removes dust and odors from the air using a pre-filter, washable deodorizing filter, and genuine HEPA filter.Can the genuine HEPA filter of the Sharp Air Cleaner model KC-850U intercept small particles? Yes, the genuine HEPA filter can intercept 99.97% of dust particles as small as 0.3 microns.How often should the filters of the Sharp Air Cleaner model KC-850U be replaced? If odors persist, the filters should be replaced. In extreme conditions, the odor may become strong in a shorter period of time.
