A diesel particulate filter (DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Diesel particulate filters operate by trapping soot particles from the engine exhaust, preventing them from reaching the environment. The particulate filter is designed to trap and retain the solid particles until the particles can be oxidized or burned in the DPF itself, through a process called regeneration - Complete DPF Cleaning Service . In order to reduce filter pressure drop due to soot accumulation, the filter is regenerated through a processes the burns off oxidizes the soot. There are two broad categories of regeneration processes, although most commercial applications use some combination of the two. Understanding the design and operation of the DPF to collect and trap particles, whether in the pores or on the surface, has a large impact on how easily the particles can later be removed. When the ...