Dr. David Loftus, NASA Ames Research Center medical officer and principal investigator of the Space Biosciences Research Branch, NASA Ames Research Center, Silicon Valley, Calif., meets with members of the 60th Medical Group at Travis Air Force Base, Calif., June 1, 2018. Loftus presented the first working prototype of the E-Nose Breathalyzer, a handheld device developed by NASA at a symposium at David Grant USAF Medical Center Oct. 21. Travis Airmen are hosting the NASA technology and collaborative research at the DGMC clinical investigation facility. (U.S. Air Force photo by Louis Briscese)