Fairchild Airmen simulate making sure the patient is breathing during a mock decontamination training exercise Sept. 16, 2016, at Fairchild Air Force Base, Wash. Decontamination is the process of removing surface contaminants on a person or piece of equipment. This process reduces the spread of hazardous agents to other people. (U.S. Air Force photo/Airman 1st Class Sean Campbell)