Automatic faucets are touchless devices that allow users to wash their hands without physically turning a tap. They use sensors to detect motion, activating the water flow when hands are placed underneath the spout. This technology promotes hygiene by reducing contact with surfaces that may harbor germs. These faucets are commonly found in public restrooms, hospitals, and homes. They can help conserve water by shutting off automatically after a set period or when hands are removed. Many models are powered by batteries or electricity, making them convenient and efficient for everyday use.