Pressure cleaners, also known as pressure washers, are machines designed to clean surfaces using high-pressure water jets. They are commonly used for tasks like washing cars, cleaning driveways, and removing dirt from patios. The pressure can be adjusted based on the cleaning task, making them versatile for various surfaces. These machines typically consist of a motor, a pump, and a nozzle. The motor powers the pump, which pressurizes the water and forces it through the nozzle. Pressure cleaners can be powered by electricity or gas, and they often come with different attachments for specific cleaning needs, such as decks or fences.