Designed with a slim and tall design, this Aromatherapy Oil Diffuser comes with a 4-in-1 function that works as a humidifier, purifier, night light and is great for aromatherapy as well. Ultrasonic diffusers are the best choice for therapeutic use of essential oils, whether in your home, office or for commercial use. It uses electronic frequencies to create vibrations in the water, that are carried to the surface where the essential oils are floating. Without using any heat at all, it will not destroy the therapeutic properties of the essential oils being used. It is great at purifying air and removing unwanted odours.