Particulate Filter Check

Want to learn more ?

Particle number test for periodic technical

inspection (PTI-PN test) was introduced in

Belgium on 1 July 2022 and in the Netherlands, Germany and Switzerland on 1 January 2023 for vehicles fitted with

a diesel particulate filter (DPF)


Particles Matter (126 pages) explains all you

need to know about  the PTI-PN test

and particulate filter technology in general.

Click here to find out more.