| Duall Division - Manufacturer of odor control systems, fume & gas scrubbers, wet dust collectors & centrifugal exhaust fans. Complete line of air & water pollution control equipment & systems for municipal & industrial applications. Odor control systems, Duall Division is a leading manufacturer of air and water quality control systems for the treatment of odors, corrosive fumes and toxic gas in industrial and municipal applications. Our major products include Hexmaster® and HepaHe.. |