Thunderbolts participate in Great American Smokeout
Yyolany Caffrey, 56th Medical Group Health Promotions coordinator, performs a carbon monoxide test on Airman 1st Class Amanda Giovannoni, 56th Medical Group dental assistant, at Luke Air Force Base, Ariz., Nov. 17, 2017. The test was used to compare lung function of non-smokers versus smokers. (U.S. Air Force photo/Airman 1st Class Caleb Worpel)

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Photo by: Airman 1st Class Caleb Worpel |  VIRIN: 171117-F-AP587-0036.JPG

F-35 Heritage Flt Team