Gas Filtration Carbocell may be filled with either standard grades or chemically impregnated grades of activated carbon. Un-impregnated grades are used to provide Broad spectrum control of VOCs or where the precise nature of the contaminant challenge has not been determined. Some gases are nor effectively controlled using standard grades of carbon.
In such cases, chemically impregnated grades of carbon or other chemically treated adsorbents are used to control specific contaminants.