Many teenagers and young adults are risking hearing loss by listening to music at dangerous sound levels, it emerged yesterday.
DeafHear, the national organisation for people with a hearing loss, has already sampled the hearing of 600 teenagers and found 60pc had the volume in their MP3 players too loud.
The volume should not exceed 85 decibels but the majority listened to music at levels six to seven times higher.
If they stick to the safe level they could listen for eight hours a day but it should be no more than 50 minutes over 24 hours if it is at 95 decibels.
DeafHear is now embarking on a 'Keep the Sound' campaign and will visit any secondary school or college around the country.
In a short, 30-second test, they can calculate the sound level at which the student listens to music and provide a personalised feedback for each student.
Chief executive Niall Keane said: "We want young people to continue to enjoy listening to the music of their choice - but at sound levels that will ensure they do not cause irreparable damage to their hearing."