Why do we have Ear Wax? The normal ear canal is lined with skin, with an average of 24mm in length and has the capacity to hold up to 2ml of fluid.  It is the outer one-third of the external auditory canal that is cartilaginous, and is the site of the earwax (cerumen) production.  The
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Why Do Zinc Air Hearing Aid Batteries Have a Tab? Zinc Air hearing aid batteries use air as an energy source, and the tab seals the air holes on the battery. Once the tab is removed, it takes approximately two minutes before the hearing aid battery is activated/charged, however, it was recently discovered that 5
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You’re at a family gathering, sitting on a long table with family and friends.  Multiple conversations are going on around. There is an interesting conversation going on in front of you.  You decide to lean forward to hear more, yet you find it hard to zone in, it just feels like a wall of noise.  
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