Filter medium for the separation of nitrogen oxides

摘要

The invention describes a filter medium (10 comprising at least three layers: the layer (A) comprising activated carbon, the layer (B) comprising a solid carrier material which is impregnated with a permanganate salt, and the layer (C) comprising basic impregnated activated carbon, wherein the layers (B) and (C) are arranged such that a gas flowing through the filter medium flows through the layer (B) before the layer (C), and the layer (A) is arranged such that a gas flowing through the filter medium Gas flows through layer (A) before layer (B) or layer (A) after layer (C). Furthermore, the invention discloses a filter media body comprising the filter medium; a filter element comprising the filter media body or the filter medium; an air filter comprising the filter element or the filter media body or the filter medium; a manufacturing method for manufacturing the filter medium and a use of the filter medium, the filter media body ers, or the filter element.