DescriptionAn air purifier and a humidifier in one, Autowit Fresh 2 gets rid of indoor pollution and add moisture to the air. It features 3-stage air filtration that effectively removes 90% the PM2.5, pollen, smoke, dust, floccus, formaldehyde, unpleasant odors, and more from your car. Autowit Fresh 2 also contains a small metal plate that vibrates at an ultrasonic frequency which breaks water from the humidifier's built-in reservoir apart into a cool vapor. The device then emits this fine mist into the air, instantaneously distributing humidity throughout the car or room! Take fresh air with you with this portable 2-in-1 air purifier!