Conducting gas purification filter and filter assembly

The present invention relates to the filter assembly (150, 200, 300, 400, 500, 600) containing the conductive filter (110) which suited gas purification, and such a filter. A conductive filter is built with the polymer which obtained the conductivity which increased intentionally by the doping method. Such a doped polymer is called a synthetic metal. For the electric nature of this synthetic metal, an electric charge can be supplied to the filter by the present invention containing such a polymer, and while that efficiency about the electrostatic characteristic operates by it, it is maintained. In the filter assembly by the present invention, an electric charge is supplied by connecting it to the conductive filter in the source of the high voltage.