Tech. Sgt. Todd Clemons, 403rd Maintenance Squadron aerospace ground equipment craftsman, cleans a purge cart at the Henry E. Rohlsen Airport in St. Croix, U.S. Virgin Islands May 5-11, 2014. This piece of equipment, used to purge liquid oxygen that remained on the island for the winter season had to be cleaned for use during the upcoming hurricane season. (U.S. Air Force photo/Master Sgt. Jessica L. Kendziorek)