Steam pressure washer is a mechanical device that uses high-pressure water to many surfaces and objects such as buildings, vehicles and concrete road surfaces. These machines spray hot steam under extremely high pressure thus removing grease and loose paint. They are used in conjunction with degreasers to enhance the steam cleaner's effectiveness. The cleaning process is done by high velocity projection of a finely divided spray of steam and water against the masonry surface. It removes grime from weather-exposed surfaces of concrete and masonry building without harming surfaces or preventing later weathering. After steam cleaning, masonry surfaces retain their original finish & natural color tones without the roughened surfaces. There should be a continuous supply of high-pressure steam or water vapor before cleaning operations.