The DPF (MoCobee СТ-3), the system produced in Japan, can capture up to 99.9 percent of the harmful soot emitted from the exhaust pipe and purifies the exhaust. It has been in use since 2003 and been installed in different vehicles, such as diesel engine buses and trucks.

The project aimed at decreasing the PM emissions established in 2017 by the Mongolian Ministry of Road Transport and Development, Ulaanbaatar Governor’s Office and JICA has been successfully completed by equipping buses of Ulaanbaatar city with these devices. The First Deputy of Development Policy of the Ulaanbaatar City Mayor J.Batbayasgalan underlined that the quality of the device was confirmed for further use as the soot emissions in public transport were decreased by up to 97 percent and the employees to be in charge of installing and operating the device were also trained within the project. The ceremony to hand over the devices was attended by delegates of Air Pollution Reduction Department of the capital city, public transportation companies, Japanese Embassy in Ulaanbaatar, Chief Representative of the JICA to Mongolia Tamura Eriko, and project leader Komori Masanori.