FLFly Car Charge Car Air Purifier Mini Aroma Diffuser Mini Multi-Car Charger Freshener Adapter with USB Ports Black Broken window steel is treated at high temperature. This is a new design of anhydrous aroma diffuser. Just add your favorite essential oils to your perfume list. Stay away from smoking inside the car, old sweat and formaldehyde smell. Nanum Tulip Car Aroma Diffuser can be directly plugged into the USB port to make the indoor air fresh. In addition Note: Cannot be used with Ford. It is CE and RoHS certified and is safe and reliable. In addition to certification