FeaturesFilter takes particles out of the air, purifying itRemoves smoke, pollen, dust, animal dander, dust mites, mould and bacteria3 speed fan settingFilters last up to 12 monthsCaptures pollutants and smoke down to 0.3 micronsTrue HEPA filtration captures 99.97%* of pet dander, mold spores and smoke down to 0.3 microns. Near silent operation with 3 speed selection allowing quiet operation during sleep or powerful rapid purification. The Allergy Pro line also features high CADR (Clean Air Delivery Rate) ratings, certified by an independant labratory. Control the quality of your indoor air with the trusted Environ Allergy Pro AP200 Air Purifier. * This air purifier captures at least 99.97% of all allergens and irritants, down to 0.3 microns, that pass through the filter.