U.S. Air Force Chief Master Sgt. James Laurent, 35th Fighter Wing command chief, right, simulates flying the new hypoxia familiarization trainer while Capt. Joseph Teodoro, 35th Aerospace Medicine Squadron aerospace and operational physiologist, left, keeps watch over the chief’s oxygen levels in the 35th Operations Group building at Misawa Air Base, Japan, March 12, 2013. Chief Laurent is scheduled to leave Misawa to take over as the command chief for U.S. Forces Japan and 5th Air Force at Yokota Air Base later this month. (U.S. Air Force photo by Airman 1st Class Kenna Jackson)