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2. Earplug - Wikipedia

   en.wikipedia.org/wiki/Earplug

   Earplug. An earplug is a device that is inserted in the ear canal to protect the user's ears from loud noises, intrusion of water, foreign bodies, dust or excessive wind. Since they reduce the sound volume, earplugs may prevent hearing loss and tinnitus (ringing of the ears), in some cases.

3. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   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. HPDs can also protect against other effects of noise exposure such as tinnitus and ...

4. Hearing protection fit-testing - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_fit-testing

   Hearing protection fit-testing. Hearing protector fit-testing is a method that measures the degree of noise reduction obtained from an individual wearing a particular hearing protection device (HPD) - for example, a noise canceling earplug or earmuff. Fit testing is necessary due to the fact that noise attenuation varies across individuals.

5. Earmuffs - Wikipedia

   en.wikipedia.org/wiki/Earmuffs

   Earmuffs that are also hearing protection. Earmuffs refer to two different items. Both items consist of a thermoplastic or metal head-band that fits over the top or back of the head, and a cushion or cup at each end to usually cover both ears. The cups can either be clothing accessories designed to cover a person's ears for warmth or personal ...

6. Secret Service should have watched roof used by Trump rally ...

   www.aol.com/secret-watched-roof-used-trump...

   Chip Somodevilla/Getty Images. The US Secret Service “should have had eyes” on the roof where an attempted assassin fired shots at Donald Trump last month, acting Director Ronald Rowe said ...

7. Missouri governor vetoes school safety initiative to fund gun ...

   www.aol.com/news/missouri-governor-vetoes-school...

   Missouri Gov. Mike Parson vetoed funding Friday for a school safety initiative that would have used video surveillance software to detect guns, becoming the second governor in as many months to ...