What is the absolute max level of ear protection you can get?
![](https://leminal.space/pictrs/image/24d9b8b3-7a55-4ebc-be09-eb0b801c2854.jpeg)
![](https://lemmy.world/pictrs/image/0943eca5-c4c2-4d65-acc2-7e220598f99e.png)
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?
You are viewing a single comment
Hmm, I was under the understanding that it actually cancels out the pressure by creating a wave exactly 90 degrees off from the initial wave, creating reverse pressure and canceling the sound….
Not sure?