A water cooler is a device that dispenses chilled or room-temperature water for drinking. It typically connects to a water supply or uses large bottles of water. Water coolers are commonly found in offices, schools, and public spaces, providing easy access to hydration. These appliances come in various styles, including countertop and freestanding models. Many water coolers also feature a hot water option for making tea or instant coffee. Regular maintenance, such as cleaning and sanitizing, is essential to ensure the water remains safe and fresh for consumption.