OSHA requires that: Employers shall make hearing protectors available to all employees exposed to an 8-hour time-weighted average of 85 decibels or greater at no cost to the employees.
What decibel level requires hearing protection? 85 dBA
Typical saw over 85dBA
If you need to raise your voice to be heard an arm’s length away, the noise is probably loud enough to damage your hearing
Always wear hearing protection If room noise is louder than a normal office noise or above 70dBA