Filter elements; air cleaner; assembly; and, methods

An air cleaner comprising:

• (a) a housing;
• (b) a primary filter element operably installed within the housing;
• the primary filter element including a media construction having an inlet flow end and an outlet flow end and wherein the primary filter element is configured to provide straight through flow;
• (i) the primary filter element having a cross-sectional configuration including a pair of spaced opposite curved ends;
• (ii) the primary filter element including an axial seal member extending completely peripherally around the media construction and axially sealed to a portion of the housing, the seal member including first and second opposite sides and an outer annular surface;
• the first and second opposite sides of the seal member being compressed axially toward one another in sealing the primary filter element to the housing;
• and
• (iii) a frame member including a band extending completely, peripherally, around the filter media construction of the primary filter element and a projection extending radially therefrom;
• (A) said projection extending completely, peripherally, around said filter media construction;
• and,
• (B) said axial seal member being mounted on the frame member projection;
• and,
• (c) a precleaner upstream of the primary filter element;
• the precleaner including multiple centrifugal separators and an ejection tube.