Sabuntawar wucewa: Mai ɗaukar kaya DPF an lulluɓe shi da Layer na ƙarfe mai kara kuzari.A ƙarƙashin yanayin zafin jiki masu dacewa, NO2 da sashin DOC ya samar yana amsa sinadarai tare da C a cikin DPF, kuma ma'aunin sinadarai na amsa shine kamar haka
C+2 NO2=CO2+2 BA
C+O2=CO2
Babban ma'auni na halayen sinadaran don cire CO da HC a cikin sashin DOC
4HC+5O2= 2H2O+4CO
SQF+O2=H2O+CO
2 CO+ O2= 2 CO2
2 NO+O2=2 BA2
C+O2=CO2
