Pressure washing is a cleaning method that uses high-pressure water spray to remove dirt, grime, mold, and other debris from surfaces. This technique is commonly used on driveways, sidewalks, decks, and buildings to restore their appearance and maintain cleanliness. The equipment typically consists of a motor, a pump, and a nozzle that directs the water flow. The process is effective for various materials, including wood, concrete, and brick. Pressure washers can be rented or purchased for home use, and they come in different sizes and power levels to suit different cleaning tasks. Proper safety precautions should be taken to avoid damage to surfaces or injury.