300ml Essential Oil Aroma Diffuser - Electric Aromatherapy Mist HumidifierThis 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