Airpax is a manufacturer of circuit breakers , bimetal thermostats , sensors, fuses , and integrated monitoring and control systems for OEMs. A privately-held company, Airpax has headquarters near the Chesapeake Bay in Cambridge, Maryland. Airpax has facilities in near Washington DC in Frederick Maryland, near Orlando in Oviedo FL, Airpax Dimensions in St. Paul MN, in Matamoros Mexico, Shanghai China, Nihon Airpax Co. in Japan.