DESC: Curb hay fever and other environmental irritations by rounding up those particles with this tower air purifier. From Hamilton Beach True-Air, the 120-volt air purifier traps 99 percent of unpleasant odors and impurities, such as pollen, dust, mold spores, and smoke. The permanent HEPA-grade filter works in conjunction with an ionizer to capture airborne allergens as small as .5 microns.