Средства индивидуальной защиты Hoffmann Group 2026 - страница 61

WHAT IS NOISE? Noise is high intensity sound. If the hair cells in the inner ear are overloaded with noise they fold over. For a certain time and up to a certain intensity of sound, the process is reversible. But if continually stressed the hair cells no longer recover and they die off, which constitutes a permanent loss of hearing.