U.S. Air Force Senior Airman Mia Yang, 99th Reconnaissance Squadron Beale Air Force Base Calif., medical technician, uses a bag valve mask on a practice manikin at the Pima Community College Public Safety Emergency and Services Institute, Tucson, Ariz., July 29, 2015. Yang was a student paramedic going through a paramedic training course offered strictly to Airmen at PSESI. (U.S. Air Force photo by Airmen 1st class Cheyenne Morigeau/Released)