The air in car is very dry、 if the air in your car is drying out your throat、 nasal passages、 and skin、 a humidifier can make a big difference. Humidifiers are particularly helpful in the car when the air naturally holds less moisture、 but they can be used when you are driving. And you could add your lovely essential oil in the water tank if you want the aromatherapy. Features: - With a 25ml Humidifing Capacity per Hour、 it's Enough to Change the Car Microenvironment and Meet Your Needs. The 2-hour Automatic Shut-off Prevents Potential Harm from Running without water- Small Enough to Easily Fit into a Coat Pocket、 or Slip into Your Purse or Bag、 Which Includes Charger Design、 not Need Prepare the External Power Adapter or Cable- Humidifier Water Tank Could be 180-Degree Rotation with No Leakage、 Standard Car Charger Interface、 Which Could Compatible with the Most VehiclesHow to Use 1. Counterclockwise turn on the product water tank 2. Pour the amount of water 3. Add the right amount of essential oils if need 4. Clockwise tightening porduct water tank 5. Insert car cigarette port 6. Touch car humidifier touch switch Finger skin too dry will cause low touch sensitivity sometimes、 and then please keep skin moist(Water) --->6.1 One time touch、 blue lights、 humidificationi mode --->6.2 Two times touch、 blue and red lights together、 aromatherapy mode --->6.3 Three times touch、 red lights、 shutdown state Package: 1x Car Humidifier