Emission class upgrading

Proventia's most advanced retrofit system NOxBUSTER« City DPF +SCR upgrades Euro 4/ 5 vehicles up to Euro 6 emission level. NOxBUSTER« City fulfils London Ultra Low Emission Zone (ULEZ) requirements. System is PEMS tested and already in the market, in  use and approved in Sweden. Depending on the vehicle's original emission level. Proventia NOxBUSTER« DPF+ SCR and NOxBUSTER« City DPF+ SCR systems can upgrade the vehicles emission class to Euro 6.

Upgrades up to Euro 5
Upgrades up to Euro 6

As a rule, an on-road vehicle┤s emission classes can be upgraded as follows:

Emission class upgrading
Proventia system
Euro 1 → Euro4 NOxBUSTER« DPF+SCR
Euro 2 → Euro 5 NOxBUSTER« DPF+SCR
Euro 3 → Euro 5 NOxBUSTER« DPF+SCR
Euro 4 → Euro 5 NOxBUSTER« SCR only
Euro 4 → Euro 6 NOxBUSTER« City DPF+SCR
Euro 5 → Euro 6 NOxBUSTER« City DPF+SCR
Many things affect what is the most suitable retrofit technology for each case: 
  • The age of the vehicle or machine and its original emission class
  • Usage (urban or highway driving)
  • Engine┤s duty cycles ( heavy-duty, long idling)
  • Quality of fuel used
  • Targeted emission reduction percentage (%) and what pollutants are to be reduced (particulate matter, nitrogen oxides, carbon oxides, hydrocarbons)