Aromatherapy Essential Oil Car Aromatherapy Mini Portable Car Humidifier Features: AND ESSENTIAL OIL DIFFUSER: When you just add the water, it can be as the car air humidifier. When adding water and essential oil, it can be as the car diffuser. It will remove dryness, helps dry skin, sinuses and coughs, also will release a smooth fragrant mist and pleasant scent in your car by dropping several drops of your favorite essence. AUTO OFF: Our car air freshener will automatically turns off when the water is below the low- water line to prevent potential security issue. You can use it for safety. It is the easiest way to maintain a fresh, moisture and odor-free environment inside your car. The portable humidifier water tank can be 180 degree rotated TWO HOUR POWER PROTECTION: After continuously working for 2 hours, this car air freshener will cut off the power automatically and prevent dry burning. Car diffusers for essential oils promote blood circulation and metabolism of body cells, relieve nervous tension, eliminate fatigue and keep you ease when driving NO LEAKAGE: Our car air purifier has high quality professional design, being able to prevent water from leaking in your car. Standard Car Charger Interface, which Could Compatible with the Most Vehicles EASY TO USE: Our Car diffusers for essential oils are durable and easy to operate. Fill your car diffuser up with water (plus 1 to 2 drops of essential oil. Please do not add more than 2 drops of essential oil, or it will block the air outlet)then plug into your DC jack swivel your unit the direction you want to spray, push power button and Mist Comes Out No more challenging technology with this purchase. Contains 1X Aromatherapy Diffuser