This car diffuser is very easy to use. Fill your diffuser up with water plus 1 to 2 drops of essential oil, plug diffuser into your car DC jack, swivel your unit the direction you want to spray, and then push power button. (Do not add more than 2 drops of essential oil, or it will block the air outlet.) 
	
This diffuser has 2-hour automatic power off technology. The diffuser's water tank can be rotated 180 degrees. Uses advanced ultrasonic mist technology.