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Hearing protection devices with accurate placement (an airtight seal) and/or accurate insertion (deep into the ear canal) will provide the most attenuation of noise. [1] There are many challenges to achieving the needed protection from the device, from barriers to adequate use, to issues related to comfort, convenience, lack of training, to ...
In underwater football, underwater hockey and underwater rugby, water polo caps are worn by competitors to identify which teams they are playing for, and to offer some protection to individuals against the possibility of a burst eardrum caused by the blade of a fin making direct contact across the ear.
Using both ear muffs (whether passive or active) and earplugs simultaneously results in maximum protection, but the efficacy of such combined protection relative to preventing permanent ear damage is inconclusive, with evidence indicating that a combined noise reduction ratio (NRR) of only 36 dB (C-weighted) is the maximum possible using ear ...
Many swimmers have trouble finding a swim cap that keeps their hair dry. "Double capping"—wearing two swim caps—can provide a tighter swim cap seal. An inner silicone or latex swim cap pulled low over the ears worn under a second traditional style chin strap swim cap with an inner seal may provide the protection desired.
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Two people wearing behind-the-neck earmuffs. Thermal earmuffs are worn for protection from the cold. Because the ears extend from the sides of the head to gather sound waves, they have a high skin surface-area-to-volume ratio, and very little muscle tissue, causing them to be one of the first body parts to become uncomfortably cold as temperatures drop.
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