Diesel Particulate Filters, also known as DPFs, are exhaust . aftertreatment devices that significantly reduce emissions from diesel fueled vehicles and equipment. DPFs typically use a porous ceramic or cordierite substrate or metallic filter, to physically trap particulate matter (PM) and remove it from the exhaust stream. A diesel particulate filter (DPF) is a filtration device installed in a diesel vehicle's exhaust system to trap particulate matter such as soot and ash, which are present in diesel T3DbxrP.

what is a diesel particulate filter