U.S. Air Force Maj. Catherine Paterson (center), an NPC-L Mobile Training Team (MTT) instructor from Ramstein Air Base, Germany, leads training on the Negatively Pressurized Conex- Lite (NPC-L) at Al Udeid Air Base, Qatar, Aug. 6, 2020. The NPC-L, the first and only one of its kind to date, was built in response to COVID-19. It was delivered to the 379th Expeditionary Aeromedical Evacuation Squadron for training. The 379th EAES is among the first to receive training on this particular model. (U.S. Air Force photo by Senior Airman Ashley Perdue)