FILTERING DEVICE

Described herein is a filtering device (10) for filtering air, in particular for the cab of an agricultural machine operating with a system for spraying pesticides. [0002] The device is characterized in that it comprises: - an outer housing (2) defining an inner chamber (C) and a fluid passage (K) through the inner chamber; - a first filter module (4) for carrying out an action of filtering on a flow of air that traverses the fluid passage (K) to eliminate or reduce the amount of dust present in the air flow; - a second filter module (6) for carrying out an action of filtering on a flow of air that traverses the fluid passage (K) to eliminate or reduce the amount of aerosol present in the air flow; and - a third filter module (8) for carrying out an action of filtering on a flow of air that traverses the fluid passage (K) to eliminate or reduce the amount of vapour present in the air flow; wherein the second and third filter modules (6, 8) are arranged within the inner chamber (C) and are permanently fixed to the outer housing (2) so that they cannot be removed from the outer housing (2); and wherein the first filter module (4) is arranged within the inner chamber (C) and is coupled to the housing (2) in a removable way.