How to clean your ultrasonic diffuser (for use with the Aria™, Rainstone™, Feather The Owl™, Desert Mist™, Lantern, and other diffusers with an ultrasonic plate Turn off and unplug your diffuser. Wipe out the reservoir with a wet cotton cloth. Dip a cotton swab in rubbing alcohol and clean the ultrasonic plate to remove any extra buildup. Rinse the reservoir with water; then wipe it clean and dry up excess water with a soft cloth. Add water and essential oils; then diffuse away! YL Tip: Rinse an