Ключевые слова: air, apparatus, breathing, chemical, chemicals, conditions, contaminated, contamination, control, emergency, environment, equipment, face, filter, filtration, fumes, gas, gases, gear, handling, hazardous, hazards, headgear, health, helmet, industrial, man, mask, materials, occupational, particles, personal, pollution, ppe, precautions, protection, protective, respirable, respirator, respiratory, response, safety, shield, substances, toxic, waste, worker, workplace, workwear,