Wherever possible, we would recommend that you try and avoid any sounds above 85 decibels. This includes power tools, lawnmowers, motorcycles, helicopters, a baby’s cry and an alarm. The higher the decibel of the sound, the less amount of time it takes to damage your hearing. Exposure to loud noise, whether consistently over time or in one sudden impulse, is a major cause of sensorineural hearing loss. An abnormally loud burst of noise can physically perforate the eardrum whilst more consistent exposure can cause long-term, irreversible damage to the sensitive inner ear hair cells.