Charging element having odour absorbing properties for an electrostatic air filter

Abstract From the Canadian patent

An improved charging element having odour and gas absorbing properties for use in electrostatic air filters of the charged media type is disclosed. The charging element improves the efficiency of such air filters and significantly broadens the range of pollutants removed from air filtered therethrough. The charging element comprises an electrically conductive air, pervious structure impregnated with an odour and gas absorbing agent preferably activated charcoal. The charging element replaces any one or more of the traditional metallic screen charging elements in known electrostatic air filters of the charged media type.