Airman 1st Class Natasha Jeter, 22nd Aerospace Medicine Squadron bioenvironmental technician, annotates a velocity reading, July 30, 2015, at McConnell Air Force Base, Kan. Airmen from the bioenvironmental shop monitor vents in industrial work centers to ensure they’re operating to Air Force standards and are safe for use by the Airmen who operate them. (U.S. Air Force photo by Senior Airman Trevor Rhynes)