Air Force Reserve Staff Sgt. Michael Richardson, an aircrew flight equipment specialist assigned to the 913th Operations Support Squadron, sprays a simulated 5 percent chlorine solution on Staff Sgt. Michael Hopson, a loadmaster with the 327th Airlift Squadron, in a Lightweight Inflatable Decontamination Systems shelter during decontamination training for aircrew flight equipment specialists at Little Rock Air Force Base, Ark., June 19, 2017. Initial testing for the decontamination system took place here in November 2005, when officials from Air Mobility Command and Air Force Special Operations Command moved the location from Keesler Air Force Base, Miss., in the wake of Hurricane Katrina. Air Force photo by Master Sgt. Jeff Walston