LOHOME&reg; Air Purifier, Portable Mini Filter Anion Air Purifier Refresher, Cleaner for Home Office Dramatically reduces the number of allergens, odors and pathogens you breathe. Negative ions (O1) remove airborne pollutants as small as .01 micron such as allergens, pollen, mold, smoke, pet dander, unpleasant odors, dust, and other airborne irritants. Reduces odors, freshens the air, and absorbs volatile airborne pollutants. Silently draws air in for purification and cleans and sanitizes the air around you. Good product for your home office use.