Air compressor pump professional filters, purification of water and impurities in the gas protection device! Empty pressure machine oil separation device empty pressure machine with oil separation device pump painting blow dust with filter device stay processing of compression air by intake mouth entered evolution device, dang through efficient filter device layer Shi, compression air through intercept, and inertia, and diffusion and the adsorption, effect, makes which of water, and dust, and oil was Yin across interception coexist product Yu purification device of bottom, pure of compression air by exhaust hole out;