FILTRE EPURATEUR DE GAZ D'ECHAPPEMENT

摘要

An exhaust purification filter having high filter efficiency and low pressure loss. The exhaust purification filter purifies exhaust gas by trapping particulate matter contained in exhaust gas discharged from an internal combustion engine. The exhaust gas purification filter has a honeycomb structure composed of partitions having a large number of pores, and cells separated by the partitions. The surface opening area of the partitions attributable to pores having a surface opening diameter of 10 mum or less is 20% or less of the total surface opening area ratio.