Master Sgt. Leonardo Erazo, 5th Health Care Operations Squadron medical logistics flight chief, simulates decontaminating the inside of a Negatively Pressurized Conex loaded on a C-17 Globemaster III on Dover Air Force Base, Delaware, April 7, 2021. Erazo is a member of the 775th Expeditionary Aeromedical Evacuation Flight, which conducted NPC training to include decontamination procedures of the entire NPC. (U.S. Air Force photo by Roland Balik)