Abstract: The present invention provides a low pressure and low temperature steam cleaner for washing vehicles. A vaporizing unit which vaporizes water at low temperature and low pressure is used to supply steam through a delivery device, such as a wand, to clean a car. The steam supplied is applied to the car, often with various chemicals, to lift and remove dirt and debris. Because the steam is supplied at low temperature and pressure, very little water and/or chemicals are needed, and the propensity of damaging the car's finish is reduced. For similar reasons, one can use the same device to clean the interior of the car (including generally water-averse materials such as fabrics and leather), thus, providing the above described advantages.