Currently mist filtration and purification equipment, developed countries in Europe 80% of spray booths are made of dry mist purification, an important reason for considering environmental protection. In addition, the dry mist purification performance in ensuring the painting, purification efficiency, reduce secondary pollution, reduce operating costs, also shows the great advantages. 2, activated carbon, activated carbon exhaust gas purifying waste gas purification device is a dry exhaust gas treatment equipment. By the cabinet and packed in the adsorption unit consisting of cabinets. According to the number of air volume adsorption unit can be combined with different specifications, activated carbon exhaust gas purification select different fillers can handle a variety of different gas, mainly for paint and other organic waste gas purification. For the latter concentrations below 1000mg / m3 exhaust gas cleaning discharge meet GB16297-1996 "air pollutant discharge standards." The device is activated carbon adsorption unit, activated carbon regeneration system needs for support (using photocatalysts oxidation unit) together. The main advantage of activated carbon adsorption equipment: high adsorption efficiency, low operating cost, easy maintenance, capable of handling a variety of mixed gas