Static neutralizing bar is used to neutralize static charges on web and sheet materials. The devices are mounted within the process machine in proximity to the moving material. As the material passes by the neutralizing bar, the surface charges are reduced or eliminated at that point in the process. The static neutralizing bar produces both negative and positive charged gas molecules called air ions. These are free ions that are attracted to the charged surface. Positive fields attract the negative ions and negative fields attract the positive until the surface is in electrical equilibrium.