If I recall correctly the maximum Noise Reduction Rating (NRR) for earplugs and earmuffs is around 30db. You can combine the two for a slight increase in hearing protection but you still hit a limit because of bone vibration.

Is there PPE out there to go even further beyond this? Where would it be commonly used?

  • meco03211@lemmy.world
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    5 months ago

    It pumps noise at other noise. All that noise literally cancels out. There’s literally no sound.