Prolonged exposure to noises at or above 85 decibels can cause permanent hearing loss, but how do you know how loud is too loud? If you have to raise your voice to be heard, the environment is probably too noisy. Even mowing the lawn, attending loud sporting events or concerts can lead to permanent damage over time. To reduce your risk, avoid noisy settings, wear hearing protection, and take periodic 15-minutes "quiet breaks." If you notice that your ears are buzzing or sounds seem muffled, it's probably time to go to a quieter spot.

Source: Consumer Reports on Health