To date, the Department of Defense has invested more than $300 million to advance technologies to expedite PFAS cleanup and to test and develop fluorine-free foams. Part of this PFAS innovation involves the removal of PFAS-containing firefighting foams from the DoD inventory and replacing them with fluorine-free foams or water-only systems. The Department of the Air Force is also hosting 55 technology demonstrations at 28 installations as part of its collaboration with DoD to develop and field innovative technologies to treat PFAS in soil, water and AFFF concentrate. (U.S. Air Force photo by Lt. Col. Stan Paregien)