Our signature diffuser, featuring all of the best elements including style, lighting and mist, offers up to 6 hours of bliss with less than a cup of water. Easy to clean and operate, the AromaMist® is selected by some of the most celebrated spas in America. No heat or chemicals needed. Simply add less than a cup of water for 3 to 6 hours of bliss depending on the selected mist setting. Rotating LED lights add to the ambiance created by this simple yet stunning diffuser.