| abstract |
There is disclosed a honeycomb filter capable of minimizing an initial pressure loss during an exhaust gas treatment in a state in which a high efficiency is maintained in trapping particulate matters included in an exhaust gas. In the honeycomb filter which includes porous partition walls to define and form a plurality of cells constituting channels of a fluid and in which the predetermined cells each opened at one end thereof and plugged at the other end thereof and the remaining cells each plugged at one end thereof and opened at the other end thereof are alternately arranged, an average pore diameter of the partition walls is in a range of 8 to 18 µm, and a standard deviation in terms of common logarithm in pore diameter distribution, when pore diameters are expressed in terms of common logarithm, is in a range of 0.2 to 0.5. |