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. Many offices and homes use water coolers to provide easy access to hydration, promoting better health and convenience. Water coolers come in various styles, including countertop and freestanding models. Some have additional features like hot water dispensers for making tea or coffee. They are often found in workplaces, gyms, and public areas, making it easy for people to stay hydrated throughout the day.