International Leaders in DPF Cleaning

What are Diesel Particulate Filters (DPFs)?

Diesel Particulate Filters (DPFs), also known as ‘particulate traps’ remove particulate matter from diesel engine exhausts.  DPFs are becoming increasingly common in trucks, buses and cars owing to stringent international emissions regulations.  DPFs are constructed from porous ceramic materials and consist of numerous small channels which are blocked at one end.  The exhaust gas enters the DPF through the inlet channels at one end.  It is forced through the porous walls of the channels and emerges from the outlet channels. 

As it passes through the channel walls, the particulate matter is trapped.  These wall-flow filters can remove 99% of the particulate matter from the exhaust gases.


DPFs come in a variety of sizes and use a range of ceramic materials including

  • Cordierite
  • Silicon Carbide
  • Aluminium Titanate

Truck DPFs are usually cylindrical in shape and the filter is clearly visible from either end.  Car DPFs are often enclosed within a metal can, sometimes alongside a catalytic converter.

Our Xpurge® cleaning technology has successfully completed rigorous testing to ensure that it is suitable for all these types of filters.