Powerful Odor Eliminator: 4WDKING Ionic Air Purifier can release up to 5.6 million negative ions per cm3, which can immediately remove bad order and smell from the car. These high-density negative ions also attach dust, pollen, allergens, bacteria, viruses, and atmospheric particulate matter (PM2.5) commonly found, and smoke to increase air quality and reduce the odor and smell. Efficient Car Odor Remove: The air purifier emits a light scent of ozone that smells similar to a summer rain shower. The negative ion that releases can neutralize the odor. The ozone is most effective in purifying when used over a period of time. Charge Your Devices: Dual 2.1 A USB ports are provided for powerful and rapid charging for any mobile phone, tablet, and other devices. A perfect car accessory to keep the car cabin fresh as well as lighting fast charging for a long car ride. Stylish Design: All matte stainless steel design with crystal-shaped blue LED not only adds a modern fashionable look to your car interior but it also helps the user to locate the air purifier and the USB ports in the dark. The unit is a silent ionizer with minimal sound. Easy Install: Plugin the unit into the 12v outlet and let it run silently in the background to purify your vehicle cabin.