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2. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   Various earmuff hearing protectors. Sound levels of some daily activities. A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise and provide hearing protection to help prevent noise-induced hearing loss. HPDs reduce the level of the noise entering the ear.

3. Hearing loss - Wikipedia

   en.wikipedia.org/wiki/Hearing_loss

   Ear protection, if used correctly, can reduce noise to safer levels, but often, providing them is not sufficient to prevent hearing loss. Engineering noise out and other solutions such as proper maintenance of equipment can lead to noise reduction, but further field studies on resulting noise exposures following such interventions are needed.

4. Hearing protection fit-testing - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_fit-testing

   Wearing or inserting the hearing protection device correctly so it seals the wearer's ear canal, using the "roll-pull-hold" method for foam earplugs, and ensuring earmuffs create an unbroken seal around each ear. [7] Fit-testing hearing protection can facilitate an appropriate choice of hearing protection, and allow for the professional ...

5. When 170,000 Amazon shoppers are raving about $21 earbuds ...

   www.aol.com/lifestyle/waterproof-earbuds-half...

   Most premium wireless earbuds are not waterproof — and that can be a bummer if you're into sweaty workouts or spend hours at the pool. But T6s are truly waterproof, so feel free to get wet.

6. Hyperacusis - Wikipedia

   en.wikipedia.org/wiki/Hyperacusis

   Hyperacusis is an increased sensitivity to sound and a low tolerance for environmental noise. Definitions of hyperacusis can vary significantly; it often revolves around damage to or dysfunction of the stapes bone, stapedius muscle or tensor tympani ().

7. Earplug - Wikipedia

   en.wikipedia.org/wiki/Earplug

   Earplugs are a form of hearing protection. Earplugs are generally safe, but some precautions may be needed against a number of possible health risks, with additional ones appearing with long-term use: Pushing in earplugs into the external ear canal may cause the air pressure to rise in it, in effect pushing against the eardrum and causing pain ...