A pressure washer, also known as a power washer, is a cleaning device that uses high-pressure water to remove dirt, grime, mold, mildew, and other contaminants from various surfaces. It consists of a motor or engine that powers a pump, which pressurizes water and propels it through a hose and a spray gun or wand. The high-pressure water stream generated by a pressure washer enhances the cleaning efficiency and allows for more thorough and faster cleaning compared to traditional methods. Pressure washers come in different types, sizes, and power sources: