A Marine with Aircraft Rescue and Firefighting helps another Marine change out an oxygen tank during a training exercise aboard Marine Corps Air Station Miramar, Calif., Feb. 23. Marines use oxygen tanks and respirators to breathe when there are dangerous fumes or thick smoke.
Lance Cpl. Melissa Lee
Taken on 23 February 2013
<a rel="nofollow" class="external free" href="https://www.dvidshub.net/image/874639">https://www.dvidshub.net/image/874639</a>