Air Force Staff Sgt. Errington Neysmith and Senior Airman Joshua O'Sullivan carry respirator equipment when picking up a patient from the Kandahar Regional Military Hospital, Kandahar Airfield, Afghanistan, Feb. 22, 2017. Neysmith and O'Sullivan are critical care respiratory therapists assigned to the 455th Aeromedical Evacuation Squadron, which operates an intensive care unit aboard an aircraft to enable teams to transport critically injured or ill patients to a higher level of care. Air Force photo by Staff Sgt. Katherine Spessa