Breath of Fresh Air
Lance Cpl. Darius Phillips, administrative specialist assigned to 4th Marine Regiment, prepares to break the seal of his M50 Joint Service General Purpose Mask during annual training at Range 105-A aboard Camp Wilson, Marine Corps Air Ground Combat Center Twentynine Palms, California, Jan. 23, 2015.
(U.S. Marine Corps photo by Lance Cpl. Aaron S. Patterson/Released). Original public domain image from Flickr