A pressure washer is a powerful cleaning tool that uses high-pressure water spray to remove dirt, grime, mold, and other debris from surfaces. It typically consists of a motor, a pump, and a nozzle, which work together to create a concentrated stream of water. Pressure washers are commonly used for cleaning driveways, decks, patios, and vehicles, making them popular among homeowners and professionals alike. These machines come in various sizes and power levels, often measured in pounds per square inch (PSI) and gallons per minute (GPM). Some pressure washers are electric, while others are gas-powered, providing options for different cleaning needs. Accessories like different nozzles and brushes can enhance their versatility, allowing users to tackle a wide range of cleaning tasks efficiently.