Ultrasonic diffusers are devices that disperse essential oils into the air using ultrasonic technology. They work by creating high-frequency vibrations that break down the oils into tiny particles, which are then released as a fine mist. This process not only helps to spread pleasant aromas but also adds moisture to the air, making it beneficial for dry environments. These diffusers are popular in aromatherapy and wellness practices, as they can enhance relaxation and improve mood. Many models come with features like adjustable mist settings, LED lights, and timers, allowing users to customize their experience while enjoying the benefits of essential oils.