Ключевые слова: background, block, blue, calm, care, cord, deaf, disturbance, ear, earplug, equipment, filter, health, hearing, industrial, isolated, job, line, loud, medical, music, muted, noise, object, orange, plastic, plug, plugs, pollution, prevention, protection, quiet, reduce, regulation, reusable, round, rubber, rubble, safety, silence, silent, soft, sound, stop, string, tool, volume, white, work, yellow,