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I started work in the hearing industry in 1990 and did so until 1999. I worked for the largest hearing aid manufacturer in the world, and two smaller companies that were eventually bought out by the former.
In this article I will talk about some basics of hearing aid care, how they are manufactured, how they can best benefit you, and I will also give some opinions on questionable practices of the industry.
First of all, the hearing aid is made simply to amplify the sound around you. If your eardrums are completely shot, they will not help you. There is always growing technologies that are being produced to help clarify that sound all the while making the instrument smaller. It sounds like a tall order, but in SOME cases, it can be done.

There have been many tools they use to help rectify certain problems. For instance, wind noise can be reduced by the installation of muffle devices inserted in or around the microphone. Earwax can also cause problems with the operation of the hearing aid.
Later, I will talk about what you can do at home to save yourself money, time and frustration. For now, I want to tell about the "solutions" that most of these companies use to fix common problems.
First of all, sweat is one of the major problems of hearing aid failure. The sweat from your ear seeps into the circuitry of the aid and shorts it out. There are preventative measures that you can do to avoid this. But first of all, let's look at what the "company" can do for you. Most dealers will recommend an anti-moisture coating to your hearing instrument. This "coating" is supposedly designed to keep moisture out. In reality, it does not exist. When working in quality control, I asked my partner if he could tell me how to tell if the hearing aid had this coating on, he took the aid from me, snapped his fingers over it and waved his hands. "There," he said, "it's on there." The cost at the time to the dealer was $29.95 and who knew what they charged grandma and grandpa. I was shocked.
To rectify this at home, one preventative measure is to baby powder the inside of your ear before inserting it, this is especially important on hot days when you're prone to sweat.
Wax can also cause problems for your instrument. The company would insert a wax spring into the receiver to prevent wax from building up in the canal. You at home can easily do this with a spring from a pen. Just clip it down to about 1cm and insert it into the tube on the receiver.
Wind noise and outside noise

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