Whirlpool Cold and Hot, Self-Cleaning, Stainless Steel Water Cooler with Time Clock Display Oxy3 Self Cleaning technology maintains hygenic conditions inside the water cooler. It uses reactive oxygen to prevent the buildup of bacteria within the water tank, a place where most people usually forget to clean! Beautiful, high grade stainless steel covers about 75% of the front cabinet; a perfect match for your high end kitchen or office decor! Commercial grade cooling uses a solid piece of ice inside the cooler to chill the water to frigid temperatures. Hot water is kept at optimal steaming temperature. Just right for for that perfectly brewed, full flavored cup of tea. Capacitive touch digital display tracks the self cleaning process. Cleans 6 times a day.