This negative ion air purifier is portable and easy to use. It can absorb odors and harmful gases in your car, such as smoke, dust, pollen, and formaldehyde. It has a high efficiency air purification system that can purify the air in minutes. It has a low noise design that will not interfere with your driving experience. It also has a knob that can be adjusted to control the amount of negative ions released. This air purifier will make your car fresh and healthy. Specifications: Product name: Car air purifier Color: Black/white Material: pp Properties: Car power supply Net weight: about 25g Packing weight: approx. 35g Product size: 11*4*4cm Packing size: 11*4*4cm Tips: The size weight is manual measurement, there will be some deviation from the actual Product List: Negative Ion Air Purifier*1 See more product details 1.Cozy and Comfortable: This negative ion air purifier is small and easy to carry. It creates a cozy and comfortable driving or living environment by purifying the air in the interior space. 2.Purified and Fresh Air: This air purifier can produce negative ions that can purify the air and remove harmful substances, such as dust, pollen, and smoke. 3.Dual filtration for pure air: This negative ion air purifier has a dual filtration system, with an active carbon brush, that can eradicate odors and harmful gases in the car. It can effectively clean the air from dust. 4.Quiet Operation: This negative ion air purifier has a quiet operation that does not disturb your driving. You can drive safely and comfortably with this air purifier. 5.Multifunctional Operation: This negative ion air purifier has a variety of operation modes that you can choose according to your needs. The LED indicators let you know the working status of the purifier and the amount of negative ions produced.