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Product Description1. Fresh the air in the car.The products has built-in high purity negative ions producing core，it can release high purity negative ions up to 5 million/cu.cm， which can remove smell and sterilize， purify the air and refresh your mind， - eliminates Odors， Cigarette Smoke， Dust and Bacteria， helps with Allergies make your journey safe and comfortable.Fast chargingTwo USB outputs，it can be used for charging two ipads at the same time.it uses advanced electric current managment project， which can detect and match the best charging electric current from different USB ports ，you have no need to find a 1A or 2A USB port car charger，it is universal and convenient for using ，plug and play.Window breakerIt has built-in specialized car window breaking device ，put the car window breaking device pointing at car side windows smashed ，which can save your life in case of emergencySpecification:Input:DC12V.24VUSB Output:5V/3.5ALon Concentration:5million/m3Protection Circuit:Short-circuit protection ，overload protection，overheat protection.Package Included: 1 * 3-in-1 Car Air Purifier