Patent ID: 6878190

Claim:
A method of installing a filter element into an air cleaner; the method comprising: (a) providing a filter element having a media construction comprising a media construction having a plurality of flutes, a first end, an opposite second end, and a first seal member oriented adjacent to the first end; (i) the plurality of flutes comprising inlet flutes and outlet flutes; (A) said inlet flutes being open at portions adjacent to said first end and closed at portions adjacent to said second end; and said outlet flutes being closed at portions adjacent to said first end and open at portions adjacent to said second end; (b) inserting the filter element into a housing body until a radial seal is formed between a radially directed seal member oriented adjacent to the second end of the filter element and the housing body; and (c) after said step of inserting, orienting a cover over the filter element and forming an axial seal by squeezing the first seal member between the cover and the housing body.