Marine Corps Pfc. Jeremy C. Brown, chemical, biological, radiological, and nuclear defense specialist, Marine Corps Embassy Security Group, conducts a gas chamber training exercise at Marine Corps Base Quantico, Va., Nov. 20, 2017. Participants for the exercise went through a series of tests to ensure proper use of a gas mask. ( Marine Corps photo by Lance Cpl. Cristian L. Ricardo)
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Keywords: chamber, comcam, comcamfeature, corps, gas, marine, mcb, mcesg, quantico