Filter element for filtering fine dust, has electrically charged pile fibers and filament with middle diameter of ten micrometers, where mixture of pile fibers is made of polyolefin and pile fibers are made of polyacrylonitrile

摘要

The filter element has electrically charged pile fibers and a filament with a middle diameter of 10 micrometers. A mixture of pile fibers is made of polyolefin and pile fibers are made of polyacrylonitrile, where the fibers are tribo-electrically loaded. The pile fibers have a central diameter that lies in the range of 5 to 30 micrometer.