People in the process of frying stove will produce large amounts of smoke in the cooking fume, through the gas collecting hood in the suction fan from the exhaust duct to the outside, the fume purification equipment, including most of the larger oil droplets, oil particles through S type baffle plate special, balanced inertia collision separation, removal of thick smoke particles, into the high voltage electrostatic field, the adsorption of oil mist particles through a large number of the dust collecting plate, ozone through modular metal mesh generated by the high voltage of strong oxidation, will all fume further collisions, catalysis, in a two-stage processing under the effect of forced gas completely carbonation decomposition, remove the remaining at the end of the discharge and odor substances, clean gas after purification.