Hunter Manufacturing Company is a leading manufacturer of NBC (nuclear, biological and chemical) air filters and air filtration systems and specialized vehicle and space heaters for military and commercial applications. In its heater division, the company concentrates on specialized space heaters for military shelters and vehicle heaters for commercial and military vehicles . Through its operating unit, Hunter Protective Systems, the company is the leading supplier of NBC (nuclear, biological and chemical) air filters and air filtration systems for both the U.S. military as well as the rapidly emerging homeland defense market