AIR FILTER ARRANGEMENT AND METHODS

The invention relates to an air filter cartridge (300) and an air cleaner arrangement comprising an air filter cartridge. According to the invention, the air filter cartridge comprises a z-filter media pack (300) comprising a stack of strips of filter media; each strip of filter media comprising a sheet of corrugated media secured to a facing sheet; the stack of strips defining opposite inlet and outlet flow faces with a set of inlet flutes and a set of outlet flutes extending therebetween; and, the stack of strips having first and second, opposite side surfaces extending between the inlet and outlet flow faces; the stack of strips being configured such that the opposite flow surfaces do not extend perpendicular to the set of side surfaces; and a housing seal arrangement comprising an axial pinch (303a) seal extending around the media pack (303).