| a device for removing small particles, as of smoke, dust, or oil, from a gas, as air, by passing the gas first through an electrically charged screen that gives a charge to the particles, then between two charged plates where the particles are attracted to one surface. |
electrostatic precipitation  (click for larger image in new window) n. The removal of very fine particles suspended in a gas by electrostatic charging and subsequent precipitation onto a collector in a strong electric field. |
electrostatic precipitation
method of removing certain impurities (either solid particles or liquid droplets) from air or other gas. It is widely used for removing particles from industrial-waste gases
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