Ключевые слова: background, calm, care, color, deaf, decibels, ear, earplug, earplugs, equipment, filter, foam, guard, health, hear, industrial, isolated, loss, loud, medical, muted, noise, object, personal, plow, plugs, prevention, professional, protect, protection, protective, quiet, reduce, reduction, regulation, safe, safety, silence, silent, soft, sound, soundproof, stopper, tools, volume, wear, white, work, yellow,