Diesel Particulate Filters

Protect Your Fleet and Reduce Emissions

Demanding applications require products that outperform. CDTi’s family of DPF technologies provide superior emissions control, noise attenuation and lower exhaust restriction over the broadest range of diesel engines. All DPF products are produced with a Silicon Carbide substrate, which is the most durable material available. Each DPF kit is provided with a back pressure and temperature monitor, independent of the engines ECM. With Verifications by the US EPA, CARB & VERT, you can depend on performance and reliability

CDTi has a tailor made product ready for any application. Whether that be for heavy duty truck, construction, mining, material handling or stationary power. Please explore the links below for more information on our retrofit technologies based on the application.

ON-ROAD DPF:

PURIFILTER®: SELF-REGENERATING FILTRATION

PuriFilter® employs a precious metal catalyst and inherently oxidizes accumulated particulates, providing extended maintenance intervals.
PURIFILTER™: SELF-REGENERATING FILTRATION​

PURIFILTER® PLUS: HYBRID FILTER REGENERATION

PuriFilter® Plus combines the passive regeneration of PuriFilter® with electrical heating elements that are used to periodically clean the DPF – making it an outstanding choice for both urban and highway drive cycle applications.
PURIFILTER™ PLUS: HYBRID FILTER REGENERATION

PURIFILTER® EGR/ PURIFILTER® OR: ENHANCED REGENERATION

The PuriFilter® EGR leverages CDTi’s advanced base metal catalyst technology on a DPF downstream of a precious metal-coated DOC. This combination provides slow back pressure and reduced cleaning intervals.
PURIFILTER™ EGR/ PURIFILTER™ OR: ENHANCED REGENERATION

OFF-ROAD DPF:

AZ DOC

AZ Purifiers™ and AZ PuriMufflers® reduce carbon monoxide and diesel exhaust particulate in enclosed work environments.
AZ DOC​

DZ DOC

DZ and EZ Purifiers offer emission reductions of carbon monoxide and hydrocarbons, like the AZ DOC. The metallic substrate allows for installation on difficult applications where vibration and shock is common. 

DZ DOC​
Purifilter™
Purifilter™ is a ceramic DPF that is revolutionizing the way diesel engines perform and impact the environment. Its innovative design and construction deliver exceptional benefits, including:
  • Minimal potential failure points and unit installation time, getting your equipment back in service faster.
  • Extremely low soot oxidation temperatures, making it ideal for a variety of on- and off-road applications, such as cold climates or in applications where engines can’t operate efficiently at high temperatures.
  • A durable, long-lasting Silicon Carbide substrate to remove 98% or more of the particulate matter from the exhaust gases, which helps reduce emissions and improve air quality.
Download DPF Brochure
Purifilter Plus M™

The Purifilter Plus M™ is a ceramic diesel particulate filter (DPF) that uses a revolutionary combination of passive and active regeneration to reduce emissions.

 

Unlike other DPFs, it doesn’t require connections to the ECM or fuel sources, making it a reliable and easy-to-install option for a wide range of applications, including:

 

  • On-road vehicles
  • Off-road vehicles
  • Military vehicles
  • Stationary engines
  • Marine engines

Download DPF Brochure

Custom solutions for your specific application

Whether you need a simple system for a single vehicle or a complex system for a fleet of vehicles, CDTi has the solution. Our catalysts can be specially formulated to meet any emissions requirements, and our finished systems are custom built for your application, ensuring a seamless installation.
Contact our engineers to learn more.

Innovative emissions solutions for any application

The engineers at CDTi design our products to meet the needs of a wide range of diesel applications, from on-road vehicles to stationary engines.

Oxidation Catalysts

AZ Purifiers™ and AZ PuriMufflers® reduce carbon monoxide build-up and diesel odor in enclosed work environments like warehouses, garages, and mines. They can be permanently installed and are easy to maintain.

Direct Air Capture

Scale your Direct Air Capture operations with confidence using CDTI’s absorbent-coated substrates. They’re easy to implement and available in a variety of sizes and shapes to meet your unique needs.

Innovative emissions solutions for any application

The engineers at CDTi design our products to meet the needs of a wide range of diesel applications, from on-road vehicles to stationary engines.

Oxidation Catalysts

AZ Purifiers™ and AZ Purimufflers™ reduce carbon monoxide build-up and diesel odor in enclosed work environments like warehouses, garages, and mines. They can be permanently installed and are easy to maintain.

Direct Air Capture

Scale your Direct Air Capture operations with confidence using CDTI’s absorbent-coated substrates. They’re easy to implement and available in a variety of sizes and shapes to meet your unique needs.

Innovative emissions solutions for any application

The engineers at CDTi design our products to meet the needs of a wide range of diesel applications, from on-road vehicles to stationary engines.

Oxidation Catalysts

AZ Purifiers™ and AZ Purimufflers™ reduce carbon monoxide build-up and diesel odor in enclosed work environments like warehouses, garages, and mines. They can be permanently installed and are easy to maintain.

Direct Air Capture

Scale your Direct Air Capture operations with confidence using CDTI’s absorbent-coated substrates. They’re easy to implement and available in a variety of sizes and shapes to meet your unique needs.