Abstract: An air cleaning system is provided in which a motor (22) mounted within a housing (20) drives a fan (51) which creates an air flow from inlet (31) through an air inlet compartment (32), spinner (42) and turbine driver (44). The air flow rotates the turbine driver (44) which in turn rotates the spinner (42). The spinner is designed to separate foreign particles from the flowing air. A liquid (33) may be included in the air inlet compartment. The clean air then passes through the air outlet compartment (45) air passage (61), and fan chamber (50), and exits through outlet (53). The device utilizes a separate air flow cooling system which circulates air through vents (26) and (23) in the motor housing (21) and through vents (24) and (25) in the motor casing (21).