Ключевые слова: adult, background, carry, caucasian, chemical, clothing, dangerous, emergency, equipment, fighter, fire, firefighter, fireman, gas, gas mask, helmet, hero, jacket, male, mask, men, military, occupation, oxygen, person, pollution, portrait, professional, protection, rescue, respirator, safety, serious, service, soldier, standing, strong, suit, toxic, uniform, virus, war, white, work, worker, workwear, yellow, young,