about this project No Filtration & Reduce CostNegative ions in the air are like vitamins in food, which can promote body growth and prevent diseases. High-concentration negative ions can quickly kill all kinds of bacteria and germs, filling your car with natural oxygen. The portable air purifier negative ion purifier adopts negative ion purification technology and has no filter element inside, which can reduce the cost of regular filter replacement. [Simple operation] One-button operation, two wind speeds, simple and convenient. Just press the same button to turn it on/off and control the fan speed. No filter required, lifetime use. It also offers an additional USB port to charge your mobile or digital devices. Fashionable and Portable DesignThe mini air purifier ionizer adopts a sturdy aluminum alloy metal body, which is small and portable, and fits all car cup holders on the market. The upgraded low-noise technology operates at a whisper-quiet level (27 dB), purifying the air without disturbing you. Home, Office and TravelNot only suitable for cars, you can use it on the road or in any small space, living room, bedroom, basement, bathroom, office and hotel to deodorize and freshen the air at any time. It is also an ideal car must-have gift for parents, friends and colleagues.