Ozone-resistant filter element

摘要

The use of a filter element using a filter medium i.e. air filter (AF) 909-type filter medium, exhibiting fibers, where the fibers are made of polyester and/or polycarbonate. The filter medium includes two layers made of a fleece material, where one of the layers is electrostatically charged. The fibers made of polyester exhibit a middle diameter within the range of 10 to 50 micrometers. The fibers made of polycarbonate exhibit a middle diameter of 10 micrometers. The filter medium is connected with a layer made of an activated charcoal, and a bonding agent is provided on polyurethane basis.