Wet electrostatic precipitator are usually referred to as WESP, is a kind of used to handle containing trace amounts of dust and tiny particles of dust removal equipment, the moisture in the gas is mainly used to remove dust, acid mist, water droplets, aerosol, stink, PM2.5 and other harmful substances, is the ideal equipment to control air dust pollution.

Wet electrostatic precipitator used liquid scour for soot dust collection pole surface, which can effectively collect fine particulate matter (PM2.5) dust, SO₃ mist, aerosol, heavy metals (Hg, As, Se, Pb, Cr), organic pollutant (polycyclic aromatic hydrocarbons, dioxin), etc. In the humidity flue gas after wet electrostatic precipitator is used up to 5 mg/m the following carbon, dust collecting performance has nothing to do with the characteristics of dust, dust with high efficiency, low pressure loss, easy operation, low energy consumption, no moving parts, no secondary dust, low maintenance cost, short production downtime, can work in the flue gas temperature below the dew point, because the structure is compact, together with other flue gas equipment, design diversity, etc.