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Tech. Sgt. Jessica Mango, 919th Special Operations Civil Engineer Squadron emergency manager, adjusts the filters on a student’s gas mask during Chemical, Biological, Radiological, Nuclear, and Explosive materials training at Duke Field, Florida, Feb. 7, 2021. The training course teaches Airmen what to do in an event where CBRNE weapons are utilized on an installation. (U.S. Air Force photo by Senior Airman Dylan Gentile)
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