Partial flow exhaust filter

摘要

A filter media is disclosed. The filter media includes a plurality of channels separated by porous sidewalls extending longitudinally from a first end to a second end. The plurality of channels includes a plurality of first channels and a plurality of second channels. The first channels are open at both the first end and the second end and have a first width. The second channels are closed at the first end and open at the second end and have a second width greater than the first width.