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Extremely loud noises can cause permanent damage to the tiny hair cells inside the cochlea. Even moderately loud noise over a period of time can be damaging. But just how loud is loud? Studies show that prolonged exposure to sounds at or above 90dB can damage hearing. The chart below graphically illustrates some common noises and their respective dB levels.
Protect your hearing and wear earplugs whenever your surroundings are so loud that you must raise your voice to be heard. It doesn’t matter what the source of the loud sounds is – music, machinery, conversation or other noisy environments.
