Mini water cooler filters and cools standard tap water to provide crisp, refreshing water. Simply fill the 1.85-gallon, BPA-free bottle and place in the cooler to easily prepare the water cooler. Filter removes chlorine, heavy metals and other contaminants found in today's water. Water cooler is Energy Star efficient and uses just 30 percent of the power of a standard cooler. Designed for portability, this cooler weighs less than seven lb. so you can travel lightly.