The oil mist enters into the purifier. First, the large oil droplets are captured by the pretreatment device. The smaller oil mist particles are ionized at high voltage. The high voltage electric field generated by the IONIZER charges the oil mist particles around them, under the action of the voltage, the collector forms corona between the plates, and the charged oil mist particles are adsorbed on the plates, and under the action of gravity, flow into the collecting device, and the purified air is discharged into the environment. Treatment of pollutants: water-based emulsion oil mist, Cooling Oil Mist, Water Vapor, metal dust; WORKING PRINCIPLE: electrostatic oil mist purifier uses electrostatic adsorption principle to purify oil mist. FIRST-STAGE FILTER: first-stage filter for 0.15 mm diameter of stainless steel woven filter core, 50 mm thick. The steel wire is compressed into a fibrous shape, forming a large number of pores, while also increasing the surface area of the oil mist in contact with the steel wire. The oil mist touches the Steel Wire Mesh, is adhered or adsorbed, after repeatedly adsorbing the fog drop, the very small fog drop agglomerates and coalesces into the big liquid drop, the liquid drop moves down along the cross point of the woven wire Mesh and the silk under the action of gravity, at the same time continue to adsorption gas entrainment droplets, growing droplets flow to the bottom of the mist eliminator screen, drop down by the gravity of the droplets themselves when the oil mist particle size larger than 3um, the purification rate can reach 95% . TWO-STAGE FILTER: the two-stage filter is made of stainless steel wire and PP material. It can filter fine oil mist particles and has high purification efficiency. The oil mist gas passing through the two-stage filter can meet the emission standard.