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Staff Sgt. Sarah Sarten and Senior Airman John Justiniano purge a hose ensure only clean liquid oxygen is used to fill a cart at the 379th Air Expeditionary Wing in Southwest Asia, Oct. 1, 2013. Cryogenics technicians work suited from head to toe protecting them from serious injuries caused by the extreme temperatures of the substances they handle. Sarten is a 379th Expeditionary Logistics Readiness Squadron cryogenics supervisor deployed from Scott Air Force Base, Ill., and a Concord, N.C., native. Justiniano is a 379th ELRS cryogenics technician deployed from Joint Base Langley-Eustis, Va., and hails from Bronx, N.Y. (U.S. Air Force photo/Senior Airman Bahja J. Jones)
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