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Air cleaning and mounting system, namely, a precleaner for cleaning debris laden air before an air filter on an engine, compressor, dryer, cooling system, ventilation system and other apparatus including unfiltered apparatus that draws air containing laden debris, comprising a housing, multiple air vanes, interior laminar air flow geometry and a dynamically balanced impeller mounted inside the housing which directs, divides and processes intake air cleaning, wherein the precleaner is powered by drawn intake air to cause the impeller to rotate generating centrifugal force which forces the heavier-than-air contaminants outward into spiraling air and ejected through a hood louver and cleansed air spirals upward and is drawn through the center of the housing driving impeller rotation and flows into the air cleaning system increasing air filter life and apparatus performance; and accessories for the precleaner, namely, adapters, adapter kits, rubber extrusions, rubber elbows, rubber hump hoses, clamps, stack extensions and prescreens attached to the precleaner