An essential oil diffuser is a device that disperses essential oils into the air, creating a pleasant aroma and promoting a calming atmosphere. These diffusers work by using water and a few drops of essential oil, which are then vaporized and released as a fine mist. They can be used in homes, offices, or wellness spaces to enhance mood and improve air quality. There are various types of essential oil diffusers, including ultrasonic, nebulizing, and heat diffusers. Each type operates differently, but all aim to provide the benefits of essential oils, such as relaxation, stress relief, and improved focus.