Air conditioning filter

A vehicle comprising and operator's cab (1) having an air inlet and an air filtration system, and an air outlet, wherein the air filtration system comprises a filter element (7), and a filter container (3) for receiving the filter element, the operator's cab comprising a chamber for receiving the filter container housing said filter element, the filter container being movable into and out of the said chamber between a filtering position and an emptying position, wherein with the container in the emptying position the filter element may be removed from the container, and the container emptied of debris, and wherein the filter container comprises at least one air inlet opening and at least one air outlet opening, and wherein with the container in the filtering position the said openings are aligned with the air inlet and air outlet such that air may be drawn through the filter into the cab.