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?

  • j4k3@lemmy.worldEnglish
    0·
    5 months ago

    Offline open source AI pointed me to this article on Wikipedia:

    Electronic hearing protection devices

    Some HPDs reduce the sound reaching the eardrum through a combination of electronic and structural components. Electronic HPDs are available in both earmuff and custom earplug styles. Electronic microphones, circuitry, and receivers perform active noise reduction, also known as noise-cancelling, in which a signal that is 180-degrees out-of-phase of the noise is presented, which in theory cancels the noise.[1]

    https://en.m.wikipedia.org/wiki/Hearing_protection_device

      • j4k3@lemmy.worldEnglish
        0·
        5 months ago

        It points you in a new direction of research and information like any others here. Sorry I cared to ask and respond I certainly won’t next time.

        • Fubber Nuckin'@lemmy.world
          1·
          5 months ago

          It seems like your response was either trying to waste my time by sending me down a rabbit hole to find the information you didn’t provide, or just being lazy and not caring to so much as check what you were posting. In either case i could do without responses like that cluttering my limited time.