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Group of male industrial workers are fleeing and covering their noses with their hands from the toxic fumes of toxic chemicals,ammonia,from violent explosions that make breathing dangerously difficult
Car exhaust pipe, smoking exhaust fumes
Exhaust fumes from car exhaust pipe. Air emissions that lead to global warming on Earth.
Close-up view of group of white smoke or steam spray from a humidifier. Isolated on black background
Information sticker on a chemical fume hood. Close sash when hood is not in use.

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