Ultrasonic diffusers use only water and essential oil. Place the diffuser on a stable surface, remove cover and add water to the max line.

Add 3-10 drops of essential oil based on the size of your diffuser and space. The oil is dropped on top of the water surface. Place back the cover to prevent spillage.

Start the device by pushing the on/off button, depending on device select continuous or intermittent option, use rotating colors or select a fixed color. If time option is available select your duration or run the device until water is consumed. All devices have Auto-Shut off.