Ключевые слова: alarm, background, burn, carbon, chemical, concept, cylinders, danger, dioxide, emergency, equipment, extinguishers, fire, firefighter, foam, group, handle, health, heat, help, hose, industrial, lot, maintenance, many, metal, nozzle, object, outdoors, protect, protection, red, rescue, safe, safeguard, safety, security, spray, suppression, tool,