A hand dryer is an electric device commonly found in public restrooms and commercial facilities that uses forced air to quickly dry wet hands after washing. Hand dryers are designed to be an eco-friendly and efficient alternative to traditional paper towels. They typically consist of a housing unit containing a high-speed motor and a heating element. When a user places their hands under the dryer’s nozzle, the motor activates, drawing in surrounding air, heating it, and then blowing it out at high velocity to evaporate the moisture on the hands. Hand dryers are valued for their convenience, as they eliminate the need for paper towels, which can generate waste and require replenishment. Additionally, they are considered more environmentally friendly and cost-effective in the long run, as they reduce paper consumption and waste disposal. Modern hand dryers often incorporate energy-efficient features and hygienic designs to provide a quick and sanitary hand-drying experience.