R. MAISONNEUVE, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY R. MAISONNEUVE, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY
Gas mask. Close up of a startled face in a military gas mask, with toxic green gas drifting by. Gas masks like this one contain a charcoal filter inside the inlet. The charcoal, along with several other chemicals, absorbs poisonous gases such as the nerve gas sarin.
Model release not required. Property release not required.