3 in 1 Purification Removal Odor and Bad Smells Instead of Covering: Design with Higher Purification Efficiency Powerful scientific and technological core: No fan required, Silent work, Binuclear ions generate negative ions, plasma and reactive oxygen species Principle Of Operation: The machine efficiently generates negative ions, plasma and active oxygen factors for purification Remove Air odor Ozone Purification System: Remove formaldehyde, smoke, pet odor, mildew, perfume and alcohol, PM2.5 USB Power Supply Direct Portable and Small:Double faced tape<br><br>Solar Power Supply Automatic Mode:Keep Purification When Stop The Car Under Sunlight Colour:black Material:plastic Sterilization and Deodorization: Kindly reminder: This purifier does not have a fan, relying on a Dual-core upgraded ion generator to generate ions that float in air inside the car The best purification effect will be achieved after 5-7 days of use<br><br>Package Contents: 1 * car air purifier 1 * USB cable<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.