A new air knife system designed to meet the strict air cleanliness requirements of the food and beverage industries has been announced by Paxton Products. The new system includes all high quality stainless steel and food grade components including an In-Line HEPA Filter, Sanitary Air Knives with clamp fittings and sanitary butt weld fittings meeting the stringent 3-A requirements for direct food contact, the company said in a release.