Staff. Sgt. Maximilion Estrada, Phoenix Spark noncommissioned officer in charge of agile manufacturing, assembles a face shield, April 6, 2020, at Travis Air Force Base, Calif. The 60th Air Mobility Wing Phoenix Spark innovation cell has been working with other base organizations, the 60th Aerospace Medicine Squadron bioenvironmental engineering flight and the 60th Maintenance Squadron fabrication flight, since the beginning of March to deliver innovative personal protective equipment to Airmen amidst COVID-19. (U.S. Air Force photo by Senior Airman Jonathon Carnell)