A filter element for an air filter assembly of an engine including a breather conduit and an intake conduit, comprising filter media having a closed loop, the filter media having a top and bottom; a first wall provided on the top of the filter media, the first wall having no openings; and a second wall provided on the bottom of the filter media, the second wall having two separate openings; wherein the filter media, the first wall, and the second wall define an interior chamber of the filter element, and wherein the two openings connect to the interior chamber such that air filtered by the filter media mixes with unfiltered gases provided through a first of the two openings by the breather conduit prior to exiting the interior chamber through a second of the two openings into the intake conduit.