a device for removing small particles of smoke, dust, oil, etc., from air by passing the air 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 PRECIPITATOR
Meaning of ELECTROSTATIC PRECIPITATOR in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012