FRESH AIR SYSTEM WITH AIR FILTER ASSEMBLY AND METHOD FOR REPLACING MULTIPLE FILTER ELEMENTS

The invention relates to an air filter arrangement (1) for purifying a bitumen-containing volume flow (V), comprising at least a first filter element (2) and a second filter element (3), which are arranged as successively acting filter elements (2, 3) for purifying the bitumen-containing volume flow (V), wherein the first filter element (2) and the second filter element (3) are firmly connected to one another. Furthermore, the invention relates to a method for performing an exchange of multiple filter elements (2, 3).