Allergens, germs and odors, beware! With a HEPA filter, it captures 99.97% of dust and allergens as small as .3 microns in size! A large activated granular carbon filter attacks common household odors including those caused by smoke, cooking and pets. And, it works to reduce the many VOC's that are emitted by common household products and cleaning chemicals. UV-C light helps reduce airborne bacteria, viruses, mold spores* and works with Titanium Dioxide to reduce volatile organic compounds. The Ionizer option can be turned on/off. When on, it helps boost allergen control by attracting microscopic particles from the air which are then captured by the HEPA filter. The easy to use panel includes UV-C control, a filter change indicator and an up to 6 hour timer. The purifiers stands 27" high and provides powerful air cleaning in rooms up to 335 sq. feet. Choose from 3 options for dan speed including an ultra quiet mode for light sleepers. *Tested with Staphylococcus Albus, and Escherichia Coli, Aspergillus Niger, and Phi-X174