Intelligent Purification: Catalytic oxidation filter destroys formaldehyde. HEPA H13 and activated carbon filtration removes 99.95% of allergens & pollutants as small as PM 0.1 (0.1 microns) including dust, pollen, mold spores, bacteria, pet dander, VOCs and other harmful gases/odors. Dual Functionality: HEPA Air Purifier + Bladeless Fan in one which projects smooth purified air per second. Backward airflow (Diffused) mode purifies without cooling Senses: The only air purifier that automatically senses and displays 4 different pollutants in real-time -