Cyclonic Flow Air Cleaner Assemblies

An air cleaner assembly having an oblong cross section shape and is shaped to cooperate with non-circular air filters. An intake tunnel passes around a portion of an exterior of a filter housing body and overlies an air inlet into the filter housing body. The intake tunnel initiates rotational or cyclonic movement of air directed into the filter assembly. A cover cooperates with a longitudinal end of the filter housing assembly and allows access to the non-circular air filter. The air cleaner assembly is constructed to allow visual inspection of the interior of the air cleaner assembly. The air cleaner assembly includes a filter body support that defines an air duct that communicates filtered air toward an underlying power tool or internal combustion engine and that at least partially supports the air filter assembly relative to the underlying equipment.