Ключевые слова: background, calm, care, color, deaf, ear, earplug, equipment, filter, health, healthcare, hear, hearing, industrial, isolated, listening, loss, loud, medical, muted, noise, object, orange, pair, personal, plastic, plug, pollution, prevention, protect, protection, protective, quiet, reduce, reduction, regulation, rubber, safe, safety, shot, silence, sleep, soft, sound, tool, volume, wear, white, work, yellow,