Myers D.L., Earley S.
Bibliographic info:
Ashrae IAQ applications - Fall 2004 - Vol 5, n° 4, p 14-16, 3 Fig, 1 Tab., 2 Ref.

Electret media or "charged" media are electrostatically charged materials that attract, like magnets do, microscopic charged or uncharged particulates. Those media are not the same in structure, stability, distribution of charge and size of their internal electric fields. Charge and structure together determine an electret media performance. In this paper the results of different filter media put to the tests are presented.