Airman 1st Class Donnie Hamilton, 11th Civil Engineer Squadron readiness and emergency manager, waits for assistance to connect his oxygen mask to an oxygen tank during the hazardous material training on Joint Base Andrews, Md., Sept. 29, 2016. The HAZMAT exercise is designed to teach readiness and emergency managers the procedures to take during a HAZMAT accident that may cause further damage to life, health, properties or the environment. The oxygen mask is designed to keep out breathable toxins that may be present in the handling of hazardous material. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)
<br>Unit: 11th Wing Public Affairs
Airman 1st Class Valentina Lopez
Taken on 29 September 2016
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