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Cummins’ filter system uses a diesel oxidation catalyst and a diesel particulate filter to trap particulate matter in a truck’s exhaust system, cutting PM emissions by 90%, the company said in a statement.The system was developed by the engine maker’s emissions exhaust aftertreatment division, Cummins Emissions Solutions, which was formed in 2002 to respond to rising emission standards in the U.S. and the European Union.
