Air Multiplier purifier fan technology projects a powerful stream of smooth, uninterrupted, purified air. Cooling tower fan when you need it. Cools you when needed A powerful stream of purified airflow can cool you down when desired. Captures gases and pollutants 360 ̊ filtration system combines activated carbon to remove odors and gases with HEPA to capture 99.97% of particles 0.3 microns in size, including pollen, bacteria and pet dander. Purifies the whole room. New un-opened in box.