How noisy is too noisy?

Listening to any sound at a high volume – more than 89 decibels – for more than five hours a week can damage hearing permanently.

The damage builds up gradually and the effects may not be noticed until years later, when it is too late – most hearing loss or tinnitus caused by noise exposure is permanent.

You can prevent deafness due to noise by taking steps to protect your hearing and by reducing the length of time you listen to very loud sounds.