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Why do hearing aids need to be dried and sterilized?
The hearing aid is a very sophisticated electronic product. The hearing aid polymer material shell is composed of very thin wires, ultra-large integrated chips, microphones, receivers, switches and other electronic devices, such as placing it on the table stably. It is not easy to cause a malfunction.
However, it must go out with the user every day. The tide and impact are the most terrible enemy of any external hearing aid. The moisture enters the hearing aid for a long time, which will inevitably corrode all the electronic devices in the hearing aid. The impact or drop will cause the microphone and receiver to shift position. Even internal wires and other components break. At present, the most popular custom ear canal hearing aids are not invulnerable. Earwax and any dirt can penetrate into the receiver or hearing aid, which will cause the hearing aid to work abnormally.
Therefore, please be sure to carefully study the instructions or advice given to you by the manufacturer or the hearing aids. Then dry the hearing aids and check the batteries regularly, and the ear canal hearing aids must also be used to remove the earwax.
Ordinary desiccant: Ordinary desiccant uses color-changing silica gel to absorb water vapor to achieve the purpose of drying and moisture absorption. Color-changing silica gel, also known as blue gel, has a strong adsorption effect on water vapor in the air, and as the moisture absorption increases, the color of the silica gel changes from blue to light red. Ordinary desiccants are inexpensive, easy to use, and can be dried for long periods of time.
In daily use, hearing aid maintenance needs to pay attention to the following issues:
1. After drying normally, please close the lid in time;
2. Observe the color of the color-changing silica gel. If the color is light or light red, it is best to replace the new color-changing silica gel;
3. Between the color-changing silica gel and the hearing aid, it is better to put a sponge or cotton cloth to prevent the silica gel particles from entering the hearing aid;
4. Put the hearing aid into the desiccant box, please open the battery compartment door.
Electronic dryer: The electronic dryer uses electricity to heat the heating element at a constant temperature, and evaporates the water vapor with heat to achieve the purpose of drying and moisture absorption. At present, there are many types of electronic dryers on the market, and some not only have working posture indicators, but also have timing devices, etc., users can purchase according to their own needs. When using an electronic dryer, please read the product manual carefully. Different products have different lengths of continuous drying. In general, the temperature of the electronic dryer is set between 40 degrees and 50 degrees, and does not cause damage to the hearing aid.
When using an electronic dryer, you should pay attention to the following issues:
1. Do not leave the hearing aid in the electronic dryer for a long time;
2. When working on the electronic dryer, please close the cover;
3. When the hearing aid is placed in the electronic dryer, please open the battery compartment door, preferably take the battery out and place it properly;
4. Do not use the electronic dryer for a long time, please remove the power supply to delay the service life and save energy.
As long as we do it in a timely and effective manner, we can stay away from the erosion of sweat, and moisture is no longer a problem.
People who buy a hearing aid generally think about how to maintain a hearing aid. The most basic thing is usually to pay attention to cleaning, and it is also important to prevent moisture. There are various ways to prevent moisture. Some people think that the northern area is dry and does not need special drying treatment for hearing aids. Some people think that their ears are not wet, so there is no need to special dry treatment of hearing aids. But these understandings are somewhat one-sided.
Because the horn and microphone of the hearing aid are electronic sound processing components, their working environment is in the ear canal of a person. The human ear can secrete a liquid similar to sweat, which condenses on the hair on the front end of the ear canal. Some people have a lot of secretions. As the saying goes: the ear. This situation indicates that the hearing aid is actually working in a humid environment.
Some people also have perforation of the drum mold due to otitis media. The liquid secreted by the middle ear adhesive layer will continuously flow into the outer ear; sometimes the pus will flow into the outer ear when the middle ear is inflamed. The presence of these conditions makes the hearing aid not work in a dry environment. In addition, climate change can cause the hearing aid temperature to be higher or higher than the external environment temperature. This will cause water vapor in the air to condense inside the hearing aid. Therefore, the ear hearing expert reminds you that the hearing aid needs frequent dry maintenance.