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The CDTi DPF Technology: Choosing CDTi for Your Vehicles

Are you looking for a reliable DPF and parts for your diesel vehicles?

The diesel particulate filter or DPF is an emission control device integrated into the exhaust system that removed the diesel particulate matter generated by diesel engines. Having a reliable DPF means a lot of good benefits for your vehicle. Not only that it affects the performance of your vehicle, but as well as its longevity. 

With our wide range of catalytic converters covers the needs for owners of all car makes, with the best price on the European market and quick and agile deliveries. One of our best selling DPF is CDTi, check out our guide on how to take care of your CDTi DPF.

CDTi Diesel Particulate DPF

A DPF is a device designed to remove diesel particulate matter (PM or soot) from diesel engine exhaust.

During operation, diesel engines produce a variety of PM due to incomplete fuel combustion. The composition of these particles varies widely – depending upon engine type, age, and the emissions specifications that the engine was designed to meet. The emitted particles in diesel exhaust can penetrate deep into the lungs – posing serious health risks including aggravated asthma, lung damage, and other respiratory problems.

The CDTi difference in DPFs.

CDTi offers a broad range of DPFs that combine advanced catalyst technologies with field-proven designs — providing exceptional reliability and filtration performance that either meets or exceeds the requirements of increasingly stringent environmental regulations.


  • Purifilter – Passive regeneration delivers a trouble-free solution to your diesel emissions mandate.
  • Purifilter Plus – Combined active and passive filter regeneration eliminates duty cycle requirements.
  • Purifilter  EGR – Passively regenerating filtration compatible with both EGR-equipped and non-EGR engines.
  • Purifilter OR – Reliable passive filtration for both EGR-equipped and non-EGR engines in off-road applications.
  • Combifilter – Rugged and dependable particulate filtration for severe off-road equipment applications.

Cattrap – Effective emissions control for heavy industrial, underground, and mining applications.

CDTi Removing 85% to 90% of Diesel Emissions

Diesel-powered vehicles that are equipped with a DPF emit no visible black carbon from the exhaust pipe and are far less harmful to the environment and the general health of people in the vicinity.

Historically, medium and heavy-duty diesel engine emissions were not regulated until 1987 when the first California Heavy Truck rule was introduced capping particulate emissions. Since then, progressively tighter standards have been introduced for both on-road and off-road diesel engines.

The CDTi Two approaches in Filtering

A DPF system collects the soot from the engine in the filter and then oxidizes, or “burns-off,” the collected soot to effectively clean itself in a process called “regeneration”. Our DPF systems utilize two methodologies to regenerate (or clean) the filter media:

  • Passive Regeneration – the DPF uses heat generated by exhaust to oxidize soot and clean its own media
  • Active Regeneration – the DPF utilizes an outside energy source to heat the filter media and clean it

DPFs can also employ catalyst systems, to passively oxidize accumulated soot, and active regeneration strategies, where external energy sources are employed to initiate thermal oxidation.

At DPFParts, we market both passively and actively regenerating DPF systems under the Purifilter, Combifilter, and Cattrap brand names.

Get Your DPF Now!

At DPFParts, we ensure that you are provided with your desired DPF parts and needs. From filters to DOC to CAC, gaskets, clamps, sensors, and a lot more.

We are a leading company in providing customers with high-quality Redline products on all DPF parts. But not only that we give out the best customer service in getting you your desired DPF, but we also team up with the best in the auto servicing industry— our sister company DCARB USA.

If you’re looking for a reliable supplier for all your DPF needs or servicing needs. Then you know one place you can go to!

Book an appointment with us today and let us be of help in getting you your desired DPF.