precipitron

plural precipitrons

1. historicalAn early electrostatic air purifier.

   Both intake and exhaust air is passed through precipitrons. The total capacity of the system is about 360,000 cubic feet per minute.

   1955, Nuclear chemistry and effects of irradiation, page 41

   2 more examples

   The air-handling equipment humidifies, dehumidifies, and distributes the correct amount of fresh air into every zone and eliminates all smoke, dust, and odors, with electric precipitrons.

   1949, Proceedings of the ... Consolidated Convention of the International Brotherhood of Boiler Makers, Iron Ship Builders, and Helpers of America, page 159

   The drying air has to be thoroughly cleaned through filters and precipitrons, the walls of emulsion rooms and coating alleys have to be covered with tiles free from cracks or properly painted to facilitate their cleaning.

   1960, Fritz Wentzel, Memoirs of a Photochemist, page 83