Air knives with a anti-static bar combine the effects of air amplification and ionization to produce a high-velocity "sheet" of ionized air (amplification ratio as high as 25:1). This combined effect can be used for static neutralizing and dust removal in a single operation, for instance in the automotive finishing, printing, packaging, plastics and textile industries. The air knife is very compact and does not have any moving parts. anti-static bars produce an electrical field which causes air molecules to break down into positive and negative ions. These ions are picked up by the high-velocity air flow produced by the air knife and propelled into the work area where they neutralize the charged surface or product.