Ключевые слова: adult, air, bizarre, businessman, care, caucasian, concepts, damage, danger, environment, environmental, equipment, gas, gasmask, ideas, inhaling, leaf, male, mask, men, nature, necktie, on, one, people, person, plant, pollution, protection, protective, respirator, rubber, safety, serious, sprout, style, suit, toxic, uniform, unpleasant, welldressed, workwear,