FILTER MEDIA FOR ACTIVE FIELD POLARIZED MEDIA AIR CLEANER

• US 20070199450A1
• Filed: 12/29/2006
• Published: 08/30/2007
• Est. Priority Date: 12/29/2005
• Status: Active Grant

• Current Assignee: Environmental Management Confederation, Inc.
• Original Assignee: Environmental Management Confederation, Inc.
• Inventors: Summers, George, Wiser, Forwood, Kaeppner, Benjamin
• Granted Patent: US 7,708,813 B2
• Time in Patent Office: Days
• US Class Current: 96/69
• CPC Class Codes: B03C 3/30 in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
• CPC Class Codes: B03C 3/64 synthetic resins

Abstract

Filter media for an active field polarized media air cleaners includes two layers of dielectric material with a higher resistance air permeable screen sandwiched between the lower resistivity electric layers. The filter media may further include a mixed fiber filter layer having fibers from different sides of the triboelectric scale. The filter media may further include a layer of relatively higher density dielectric material followed by a layer of relatively lower density dielectric material.

Claims

1. A filter media for an active field polarized media air cleaner comprising:

a first pad of filter material;

a second pad of filter material; and

an air permeable screen disposed between said first pad of filter material and said second pad of filter material, the resistivity of said air permeable screen being greater than the resistivity of said first pad of filter material and the resistivity of said second pad of filter material.

2. A filter media in accordance with claim 1, wherein said first pad of filter material and said second pad of filter material is fibrous polyester.

3. A filter media in accordance with claim 1, wherein said air permeable screen is a fiberglass screen.