Wet and/or dry vacuum cleaning unit

A vacuum system for cleaning rugs and floor or other surfaces having a closed loop for both the air and the cleaning liquid to continuously recirculate and filter the air and sanitize the cleaning liquid which comprises:

• a) a vacuum source having a suction side and a controlled air flow pressure side (exhaust side);
• b) a pair of spaced apart wheels positioned at the rear of said vacuum system and adapted to ride on the surface to be cleaned;
• c) a head assembly positioned in said system forwardly of said pair of spaced apart wheels and adapted to ride on the rug or floor or other surface to be cleaned in order to form said closed air flow loop;
• d) at least one rotatable brush within said head assembly;
• e) means of communicating the suction side of the vacuum source with the head assembly to provide suction within said head assembly for picking up dirt or other materials;
• f) a turbine motor;
• g) means for communicating filtered air exhaust side of the vacuum source with said head assembly, said turbine motor being positioned within said means whereby the air exhaust impinges on and drives the turbine motor;
• h) means interconnecting the brush and the turbine motor whereby the turbine motor drives the brush, said means interconnecting being at a right angle to the axis of rotation of the brush;
• i) a liquid source and means for the injection of atomized liquid into said head assembly ahead of said brush, said liquid may contain germicidal and bacterial killing compounds for removal of germs and bacteria from the surfaces to be cleaned and continuous scrubbing of the liquid and air within the unit system;
• j) air containment means including air dams provided around the periphery of said head assembly for preventing air from entering or leaving said head assembly when it rides on said surface to be cleaned;
• k) air filter means positioned between the vacuum source and the head assembly to remove dirty atomized liquid to form a condensate;
• l) means for filtering said condensate;
• and 1) means for communicating said filtered clean condensate with said means for injecting atomized liquid.