Aroma Diffuser Air HumidifierAroma Diffuser Air Humidifier Equipped with an ultrasonic technology, this essential oil diffuser breaks down water and essential oils into fine micro particles, ensuring maximum diffusion of aroma without heat, preserving the integrity of your oils. Designed for convenience, this aroma diffuser features an auto shutoff function that activates when the water level is low, providing safety and energy efficiency, so you can relax without worry.