How many types of earmolds are there for hearing aids? And which type is suitable for you?

An earmold is a custom-made device designed to secure the hearing aid to the wearer’s ear. Each earmold is crafted according to the unique shape of an individual’s ear canal. The size and shape of the earmold vary depending on the ear canal structure of each person.

When the earmold is used with a hearing aid, the amplified sound is directed straight into the wearer’s ear canal, allowing them to hear high-quality and comfortable sound. In addition, wearing an earmold helps prevent feedback or whistling noises caused by sound amplification.

Earmolds are suitable for elderly hearing aids, behind-the-ear (BTE) hearing aids, receiver-in-canal (RIC) hearing aids, and rechargeable behind-the-ear hearing aids.

Functions of an earmold

Snug fit with the ear canal: Ensures that the hearing aid stays securely in place.
Prevents feedback: Feedback occurs when the earplug does not fit tightly in the ear canal, causing sound leakage and whistling. When the earplug fits properly, the sound from the hearing aid enters the ear without producing feedback, allowing you to listen comfortably and accurately at a normal volume level.
Sound adjustment: The earmold can reduce background noise and amplify sounds according to the user’s hearing needs, helping improve sound clarity. The parallel vent holes in the earmold help balance internal and external ear pressure, making it more comfortable to wear.

Types of earmolds

Receiver-in-canal

Suitable for individuals with mild to moderate hearing loss

Half-shell type

Suitable for individuals with mild to severe hearing loss

Full-shell

Full-shell, fits snugly in the ear — suitable for individuals with severe hearing loss

Skeleton

Not full-shell, only fits the outer ear contours — suitable for individuals with mild hearing loss

Thin full-shell

Removes part of the outer ear edge — suitable for individuals with limited finger dexterity.

Earmold Impression Procedure

Earmold creation: The earmold must be made according to the shape of the ear canal of the person with hearing impairment. Ear shape assessment is the first step in making an earmold.

1. Examine the ear canal

2. Place cotton with thread

3. Mix adhesive A and B

4. Inject to fill the ear canal

5. Wait for it to harden

6. Remove the earmold

*Earmold production time: approximately one week*

How to Clean an Earmold

Earmolds should be cleaned regularly. You can clean them yourself or take them to a hearing aid store that offers cleaning services.
Separate the earmold and sound tube from the hearing aid, paying attention to keep the left and right devices separate.
Use a mild detergent to clean the earmold; do not use strong or concentrated detergents.
Rinse gently with clean water.
Dry the earmold with a dry cloth.

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Expert consultation services are provided to help reduce behaviors that risk hearing loss and to ensure proper ear care. Anyone interested in a hearing test or hearing aids can contact Digibionic, with services available at all branches.