This ultrasonic electric air mist ultrasonic humidifier is used for aromatherapy by diffusing essential oils aromas and humidity in a 300ml capacity container with controllable LED lights and colours. Ultrasonic aroma humidifiers use ultrasonic vibrating liquid water to produce water mist and emit it in the air for humidification. It improves air quality and also refreshes the skin and can be taken as a skin care, keeps skin healthy and moist. By adding 4~5 drops of various kinds of essential oils into the water, it will mix fragrance with water mist and has the effect of removing the dust & peculiar smells as well as adding amazing aroma and smell. Features LED color: 4-7 colors changing mood light LED colour options: Colour changing, or 1 colour only or no light at all.