Mid-sized commercial unit for installation inside the ductwork of central HVAC systems, suitable for retail stores, restaurants, residential building lobbies, or offices.  This unit uses five 14 inch long plasma generation tubes, and is rated to treat areas of up to 5,500 square feet, at rates of up to 8,000 CFM.  Smaller and larger units  are available for any possible requirement of square feet and number of CFM of air movement.