YOKOTA AIR BASE, Japan -- Staff Sgt. Sergio Chinchilla (standing) and Airman 1st Class Thomas Elliott calibrate a ventilator during an inspection at the 374th Medical Support Squadron's medical equipment repair center element here. Both Airmen are biomedical equipment technicians. The element staff is responsible for acquiring, installing, maintaining and disposing of medical equipment for the base's 374th Medical Group. They also provide intermediate equipment maintenance for various bases throughout the Pacific region. (U.S. Air Force photo by Master Sgt. Val Gempis)