Maj. Vincent Giacomino, 11th Wing SparkX Cell chief innovation officer, shows Col. Andrew Purath, 11th Wing and Joint Base Andrews commander, facemask prototypes printed at the SparkX Cell Innovation and Idea Center on JBA, Md., Apr. 8, 2020. The masks are meant to function at a higher filter rate than homemade cloth or surgical masks. The Centers for Disease Control and Prevention recommends wearing cloth face coverings in public settings where social distancing measures are difficult to be maintained. (U.S. Air Force photo by Airman 1st Class Spencer Slocum)