EXHAUST GAS PURIFYING FILTER

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas purifying filter exhibiting enhanced purification efficiency and reduced pressure drop. SOLUTION: In this exhaust gas purifying filter 1, particulates in the exhaust gas 2 delivered from an internal combustion engine are collected in order to purify the exhaust gas 2. The exhaust gas purifying filter 1 is provided with a partition wall 11 having a large amount of pores, and a honeycomb structure body 10 having a cell 12 partitioned by the partition wall 11. A surface aperture area ratio of the pore having a surface aperture diameter of 10μm or less in the partition wall 11 is 20% or less with respect to a total surface aperture area ratio.