Berkefeld filter


Berke·feld fil·ter

19th-century earthenware bacterial filter. [Berkefield, name of the mine from which earthenware material was taken]

Berkefeld filter

(bĕr′kē-fĕld) [Wilhelm Berkefeld, Ger. manufacturer, 1836–1897] A filter of diatomaceous earth designed to allow virus-size particles to pass through.

Berkefeld,

name of a mine owner from which material to make filter was taken. Berkefeld filter - filter for bacteria.