Ultrasonic diffuser and humidifier with two types of diffusion: continuous cycle and an alternating 10-second diffusion cycle with a 10-second pause. Coverage up to 30 m² with a tank capacity of 150 ml. Features a light effect with changing or fixed light function and a choice of light color. Provides up to 8 hours of continuous use when the tank is fully charged. Diffusion can be programmed for 1 or 3 hours, and it has an automatic steam shut-off when the water level is low. Produces cold steam and is designed for use with water-soluble essential oils. Equipped with three non-slip feet and includes a USB Type-C cable.