What are Negative Ions? Ions with one or more negative electric charge called negative ions, which make people feel comfortable. Why We Need Negative Ions? Negative ions improve pulmonary function, purify the blood, promote boost metabolism,improve the body, and reduce the pressure on the brain. How Can We Get Negative Ions? Here comes Car Ionizer Air Purifier. 1. It releases 4.8 million negative ions per cm3 in your car for massive odor-fighting power. 2. It can kill harmful bacteria, virus and dispel unpleasant odor, remove the PM2.5 particles by generating?safe amount of ozone. 3. It can decompose the formaldehyde, benzene, musty, leather smell, animal odor and other harmful gases. 4. Promote the boost metabolism, relieve fatigue, refreshing. How to Use it? Plug the device into the car lighter or adaptor. The LED indication light will be on when the device is working.The device will work continuously until it is unplugged. Product Paraments: ?Anion Density: 4,800,000 pcs/ cm; ?Working Temperature: -10??~40??; ?Storage Temperature: -20??~60??; ?Working Voltage: DC12V; ?Dimension: 31X100mm; ?Gross Weight: Around 113g; ?Net Weight: Around 40g; ?Application: Perfect for car, RV, house and office. Package Included: 1 X Car Air Purifier.