As a result, the amount of time you can safely spend listening to a certain sound rapidly decreases the louder the sound is.
This is due to the fact that every 3 dB increase in the noise level effectively doubles the amount of sound energy being released.
Taking measures to reduce noise levels by just a few decibels can be hugely beneficial for your ears.
To give you an idea of where 85 decibels lies on the scale:
Prolonged exposure to noise levels above 85 decibels is considered to be damaging to your hearing.
Then you will have a better idea of what to avoid. A large part of protecting your hearing is learning to recognize potentially dangerous noise levels. Learn to recognize potentially dangerous noise levels.