Traditional hand dryers are devices commonly found in public restrooms that use warm air to dry hands after washing. They typically operate by blowing air onto wet hands, helping to evaporate moisture quickly. These dryers are often mounted on walls and can be activated by a button or a sensor. These hand dryers are usually powered by electricity and can vary in design and efficiency. While they are considered more hygienic than paper towels, as they reduce waste, some users find them less effective, especially in high-traffic areas where quick drying is essential.