Gas Mask. Royalty-Free Stock Photo

Man in a gas mask and suit is thinking about pollution of environment on a gray background, pensive, wistful, contemplate, thoughtful, solution, find, idea, searching, person, face, looking, air, problem, people, industry, business, businessman, industrial, concept, human, worker, employee, factory, apocalypse, catastrophe, ecology, ecological, disaster, threat, smoke, toxic, fume, chemical, danger, safe, save, protect, protection, inspector