A 48th Rescue Squadron pararescueman reads the display of an atmospheric monitor at Titan Missile Museum, Green Valley, Ariz., April 17, 2014. Before entering a confined space, an atmospheric monitor is used to test the air conditions to determine whether a breathing safety apparatus needs to be used. (U.S. Air Force Photo by Airman 1st Class Chris Massey/Released)
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GREEN VALLEY, AZ, US
This work, 48th RQS rescue training at the Titan Missile Museum [Image 1 of 9], by SrA Chris Massey, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.