Features: brand new and high quality The negative ion generators on both sides of the interior can generate a large amount of negative ions, which can effectively remove dust, animal dander, smoke, pollen and other allergens. up in the air. Elimination of peculiar smell: no concealment, truly eliminate peculiar smell.Natural air: 3 million negative ions are released to purify the air, and every breath is like nature. Safe power supply: It is convenient and quick to use, can be used for all 12V cigarette lighter car power supplies, compact and easy to carry. Small and exquisite: small size, easy to carry, just like the space in a car.Activated carbon brush: healthy material, effectively filter dust and other particles.Ambient Aura: The light is on after power on, and the light is soft and not dazzling. Purify the air in the car, kill bacteria, and help you breathe for fresh air.Easy to use, plug and for play.PM2.5 elimination rate. Specifications: Material:ABS Size:Approx.3.5x10.5x2cm/1.38x4.13x0.79inches Color:White/Black Function: In addition to smoke and dust Working principle: negative ion Noise: 35 (dB) Power supply mode: vehicle power supply Scope of application: 4 Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Air Purifier