Equate Ultrasonic Humidifier: Holds .5 gal of water; Produces visible cool mist to increase the environment humidity; 2 Different output options: Low and High speeds; Timer settings: 2, 4 or 8 hours run time setting; Filter free; 7 color night lights. You can choose seven colors that gradually change or choose a fixed color Oils directly to the tank. Add essential oils for an aromatic experience Top fill design. You can fill in from the top of the water tank. And it has a big enough water tank opening so you can clean the water tank easier; Runs up to 24 hours, contentiously adds moisture to the air; For use in small and medium room sizes; White color housing, with wooden legs; With a UL Polarized Plug.