This 5-in-1 tower air purifier uses an advanced air cleaning system that combines five powerful air cleaning functions to deliver cleaner, fresher air to your home. True HEPA filters capture up to 99.97% of microscopic airborne allergens that pass through the filter, while UV technology helps reduce certain airborne germs, viruses, fungi and bacteria. The odor pre-filter reduces common household odors as well as certain VOCs/gases. Features digital display, 12 air cleaning levels, 1 to 18 hr. timer, filter status gauge, oscillation and ultra quiet operation. AHAM Verifide™ for a 170 sq. ft. room size.