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The Thermal DPF Cleaning Process

Thermal is best for:

STAGE 1: Pre-Clean

Filtertherm Inspection table Thermal icon

Inspect & Benchmark

  • Visual inspection – check for damage & evidence of upstream issues.
  • Wire/Pin test for plugged cells.
  • Measure the airflow of the filter.
  • Measure the filter weight.
  • Check for cracks in the brick using the built-in light.
FilterTrak Icon

Document & Record

  • Record pre-clean Inspect & Benchmark results into FilterTrak software.
  • Take “Before” pictures of the filter.
  • Note: With new equipment purchase get a Free 1-year subscription to FilterTrak (our professional DPF service management software tool).

Blow (De-Ash)

  • Remove as much loose material as possible from the filter before baking.
  • Use either the Pulse Cleaner which is an automated, self-contained process.
  • Or the optional Blow-Out Kit which is a more compact, economical solution, but is labor-intensive.


Filtertherm DPF Oven icon with touchscreen


  • Load the filters into the oven.
  • Set the filter cycle based on the filters being cleaned.
  • Using the redesigned new touchscreen user interface.
  • The baking cycle usually runs overnight.


  • Carefully remove the hot filters from the oven.
  • Place the filters on the Cool-Down Cart.
  • Accelerated the cooling process safely.

Blow (De-Ash)

  • Uses high-velocity, heated air.
  • Most filters dry in 20 minutes.
  • An adapter kit is available for many odd and irregularly shaped filters.
  • Exclusive to the Aqueous package.

STAGE 3: Post-Clean

Filtertherm Inspection table Thermal icon

Inspect & Benchmark

  • Wire/Pin test for plugged cells if needed.
  • Measure & compare the airflow of the cleaned filter to determine effectiveness.
  • Measure & compare the cleaned filter weight to see how much soot was removed.
FilterTrak Icon

Document & Record

  • Record post-clean Inspect & Benchmark results into FilterTrak software.
  • Take “After” pictures of the filter.
  • Note: With equipment purchase get a Free 1-year subscription to FilterTrak (a customizable, software tool for tracking DPF Service records).

Install & Finish

  • Re-install the clean filter on the vehicle.
  • On your terms and timing.
  • Get that truck back on the road.

The Filtertherm® Thermal DPF Cleaning System uses the more traditional process for cleaning filters – often called the Bake & Blow method.



The Filtertherm® Thermal Cleaning System has some key benefits:

  • Purpose-built for cleaning multiple filters at a time.
  • Designed & refined from years of real-world experience cleaning filters.
  • Ergonomic, automated, with built-in safety controls.
  • Proudly Designed and Built in the USA.

**Get a FREE 1-year subscription to FILTERtrak™ (a $1,200 value) with the purchase of any Filtertherm DPF cleaning package.**


View videos about the Thermal DFP Cleaning System.

Filtertherm playlists Thermal
Thermal DPF Cleaning System by Filtertherm

The Filtertherm® Thermal DPF Cleaning System consists of these components:

  • The High-Capacity DPF Thermal OVEN can bake multiple filters at once. Custom-designed for cleaning DPFs.
  • The automated Pulse Cleaner quickly de-ashes filters.
  • DPF Cooling Cart is designed to decrease the cooling time of baked filters by 2-4 hours depending on conditions.
  • The DPF Inspection Table for the vital steps of pin testing, checking for cracks, flow testing, and weighing a filter before and after cleaning.
  • Also available is the Dust Collector Kit which includes a mini portable cyclone dust collector & a mini DPF table. Features HEPA filtration & a compact footprint.

Try out our ROI tool to see how quickly this system pays for itself.

How often should you clean your DPFs?

There have been many myths and misconceptions about aftertreatment systems. Some people think you can just ignore them until the dreaded “derate”. Others think you can base all emissions servicing on the OE specs alone. That’s just not the case in the real world.

OE service recommendations are between 200,000 – 300,000 miles, or 4500 hours – whichever comes first. Aftermarket manufacturers of DPFs recommend cleaning at 50,000 – 70,000 miles, or 1,000 hours – whichever comes first. These numbers are generally overly optimistic and presume perfect operating conditions.

Based on our experience, Filtertherm® recommends servicing your DPF at least once a year. Removing the soot regularly will help extend the life and performance of your fleet’s aftertreatment systems and engines. Hardened ash build-up in the system restricts the flow and often causes unnecessary engine issues or failures.

It’s vital to establish a maintenance schedule that also takes into consideration the real-world driving conditions of the vehicle. Trucks that are run in stop-and-go traffic or high idling situations often need dpf cleanings at closer intervals.

Proper DPF maintenance is key to a healthy truck & in turn a HEALTHY FLEET.
Made in the USA - Filtertherm DPF Cleaning machines

Designed and Built in the USA

Designed and Built in the USA

Filtertrak - DPF Cleaning Service Tracking Application logo

DPF Service Tracking Software

FILTERtrak™ custom-built, cloud-based, searchable software tool for Fleets and DPF Cleaning facilities.

FILTERtrak™ stores before/after filter pictures, vehicle info, filter info, cleaning records, and more.

FILTERtrak™ is responsive making it simple to use & view all your DPF service data on multiple devices!

Get a FREE 1-year subscription to FILTERtrak™ (a $1,200 value) with the purchase of any Filtertherm DPF cleaning package.

Visit the FILTERtrak™ website to learn more.
Contact Wayne to learn more about DPF Cleaning machines from Filtertherm

Find the right DPF Cleaning solution for your FLEET.

Give us a call. Get Answers.

Use our ROI tool to see how quickly this investment can save your fleet time and money.

Schedule a meeting with Wayne Cochrane, our National Sales Manager.