Sometimes battling the elements means combating man-made elements. Clyde Bergemman EEC designs and supplies custom-engineered air-pollution control systems and offers related services. Its systems scrub out dust and acid gases from plant emissions to meet strict regulations. Customers include power generators and paper and pulp producers. Its products include ammonia-on-demand systems (which control emissions from power generators), electrostatic precipitators, and fabric filtration systems. The company is a unit of energy services provider Clyde Bergemman Power Group.