Hearing aid durability
What can modern hearing aids actually withstand?
Modern hearing aids are small, advanced electronic devices, but they are also made for daily life. They are worn for many hours, exposed to movement, moisture, temperature changes, dust, skin oils and earwax, and they need to keep working reliably through everyday routines.
To make this possible, hearing aids are developed with strong materials, protective coatings and strict quality testing. Before a hearing aid reaches the user, it may go through tests for temperature, humidity, impact, wear, moisture, corrosion and wireless stability. These tests help ensure that the hearing aids can handle normal daily use and still deliver stable sound performance.
Small devices made for everyday challenges
A hearing aid may look delicate, but it is built to be worn in a demanding environment. It sits close to the skin, near the ear canal, and is exposed to heat, sweat, moisture, dust and earwax every day. At the same time, it contains microphones, receivers, processors, batteries, buttons and wireless technology that must keep working together.
This is why hearing aid durability is not only about the outer shell. It is also about how the electronic components are protected, how well the device resists moisture and dirt, how stable the wireless connection is, and how reliably small mechanical parts work over time.
What are hearing aids tested for?
Hearing aid manufacturers use different test procedures, but the goal is the same: to make sure the devices can withstand realistic everyday stress. The tests are designed to expose hearing aids to conditions that may happen during normal use, travel, storage or accidental handling.
Temperature shock
Hearing aids can be exposed to changing temperatures during daily life. For example, you may move from a cold outdoor environment into a warm room, leave your hearing aids in a bag during travel or use them in warm summer weather.
Temperature shock testing checks how hearing aids react when they are exposed to extreme temperature changes. This helps manufacturers evaluate whether the materials, seals, electronics and battery components remain stable when conditions change quickly.
Drop and impact tests
Even careful users can drop a hearing aid. It can fall from a hand, table, bathroom shelf, bedside table or charging station. Drop testing helps assess whether the hearing aid can survive accidental impact from everyday heights.
Some durability tests include repeated drops from different angles onto hard surfaces. These tests help evaluate the strength of the shell, battery door, buttons, receiver connection and internal components.
Mechanical stress tests
Hearing aids have small parts that are touched and handled regularly. Battery drawers, push buttons, charger contacts, receiver connections and other mechanical parts need to stay reliable after repeated use.
Mechanical stress tests can simulate long-term use by repeatedly opening, closing, pressing or moving specific parts. This helps check whether the hearing aid remains precise and functional after months or years of daily handling.
Humidity and moisture tests
Moisture is one of the biggest daily challenges for hearing aids. Sweat, humidity, rain, condensation and temperature changes can all expose the device to moisture. Because hearing aids contain sensitive electronics, moisture protection is an important part of modern hearing aid design.
Humidity and moisture testing helps evaluate how well the hearing aid performs in damp conditions. These tests can include warm and humid environments, artificial sweat and repeated exposure to moisture over time.
Dust, dirt and earwax exposure
Hearing aids are used close to the ear canal, which means they are regularly exposed to earwax, skin oils and small particles. Earwax can block domes, wax filters, receivers and sound outlets, while dust and dirt can collect around microphone openings and small gaps.
Testing and design features help protect the hearing aid, but daily cleaning is still important. Even a highly durable hearing aid can sound weak or muffled if the wax filter is blocked or the dome is dirty.
Corrosion and surface protection
Because hearing aids are worn close to the body, they can come into contact with sweat, skin oils, cosmetics, sunscreen and moisture. Over time, these can affect the surface and small metal contacts if the device is not properly protected.
Corrosion and surface tests help evaluate how well the hearing aid resists these everyday substances. Protective coatings and carefully chosen materials help reduce the risk of damage from moisture and residue.
Wireless connection tests
Modern hearing aids often connect to smartphones, tablets, TVs and accessories. A stable wireless connection is important for streaming, app control, phone calls and everyday convenience.
Wireless testing checks whether the hearing aids can keep a stable connection in realistic situations. This is especially important for users who rely on hearing aid apps, TV adapters, remote microphones or direct streaming during the day.
What does IP68 mean for hearing aid durability?
Many modern hearing aids have an IP rating. IP stands for Ingress Protection and describes how well the device is protected against dust and water. The first number refers to protection against solid particles such as dust, while the second number refers to protection against water.
An IP68 rating is one of the strongest ratings commonly seen in hearing aids. The “6” means the device is dust-tight, while the “8” means it has strong water-resistance under defined test conditions.
However, water-resistant does not mean that hearing aids should be used for swimming, showering or intentional submersion. IP ratings are test standards, not a guarantee that the device can handle every real-life water situation. Soap, salt water, chlorine, heat, pressure and long exposure can still damage hearing aids.
Are hearing aids waterproof?
Most hearing aids should be described as water-resistant, not fully waterproof. Many modern hearing aids can handle sweat, light rain, humidity and accidental splashes better than older devices, but they are still electronic devices and should be protected from unnecessary moisture.
If your hearing aids get wet, dry them gently with a soft cloth and use a suitable drying solution. Do not use a hair dryer, oven, microwave or direct heat. If the hearing aids stop working after moisture exposure, contact your hearing care professional.
What hearing aids can usually handle
Modern hearing aids are generally designed to withstand normal daily life. This includes regular handling, walking outdoors, wearing them during work, social activities, light rain, humidity and everyday temperature changes.
- Daily wearing for many hours
- Normal movement and handling
- Light rain and humidity
- Sweat and skin contact
- Dust and small particles
- Temperature changes during everyday use
- Wireless connection to compatible devices
Durability depends on the exact hearing aid model, build quality, IP rating, maintenance habits and how the hearing aids are used.
What hearing aids should not be exposed to
Even durable hearing aids have limits. They should not be treated like waterproof sports electronics. Avoid exposing them to unnecessary moisture, heat, chemicals or physical pressure.
- Do not swim or shower with hearing aids unless your hearing care professional has confirmed that your specific model is suitable for it.
- Do not leave hearing aids in direct sunlight, a hot car or near a heater.
- Do not clean hearing aids with water, alcohol or household cleaning products.
- Do not spray cleaning spray directly into microphones, receivers or charging contacts.
- Do not use strong heat to dry hearing aids.
- Do not store hearing aids in damp bathrooms overnight.
Why maintenance still matters
Durability testing shows what hearing aids are built to tolerate, but daily care still makes a big difference. A hearing aid can be robust and still perform poorly if it is blocked by earwax, moisture or dirt.
The most common everyday issues are often simple: a blocked wax filter, a dirty dome, a clogged microphone opening, low battery power or moisture inside the device. A short care routine can help prevent these problems and keep the sound clearer.
Clean the surface daily
Wipe your hearing aids with a soft, dry cloth after use. You can also use suitable cleaning wipes for quick external cleaning. This helps remove skin oils, dust, fresh earwax and residue before it builds up.
Use a brush for small openings
A cleaning brush can help remove dry earwax and dirt from microphone openings, domes, earmoulds and sound outlets. For more detailed cleaning, cleaning brushes and tools can help reach small areas that are difficult to clean with a cloth.
Replace wax filters regularly
Wax filters protect the receiver from earwax. If the hearing aid suddenly sounds weak, muffled or silent, the wax filter is one of the first parts to check. Replacing a blocked wax filter can often restore the sound quickly.
Check domes and earmoulds
Domes sit in the ear canal and can collect earwax quickly. Replace them if they become blocked, stiff, discoloured, loose or damaged. A clean and correctly fitting dome supports both comfort and sound quality.
Use cleaning spray correctly
Cleaning sprays can be useful for external cleaning of hearing aids, earmoulds and accessories. Always spray onto a cloth or suitable brush first. Do not spray directly into openings, receivers, microphones, battery compartments or charging contacts.
Dry hearing aids overnight
Moisture can build up during the day, especially in warm weather, during exercise or in humid environments. A drying cup with drying capsules can help reduce moisture overnight. For more advanced drying, an electronic drying box such as PerfectDry Lux can be a useful part of daily care.
When should hearing aids be checked professionally?
If your hearing aids keep cutting out, sound weak after cleaning, produce feedback, have charging problems or show visible damage, they should be checked by a hearing care professional.
Professional service may also be needed if the hearing aid has been exposed to heavy moisture, dropped on a hard surface or no longer connects correctly to your phone or accessories.
FAQ about hearing aid durability
Can hearing aids withstand rain?
Many modern hearing aids can handle light rain and humidity, especially if they have a high IP rating. However, they should still be dried afterwards and protected from heavy or prolonged water exposure.
Can I shower or swim with hearing aids?
In most cases, no. Even if hearing aids are water-resistant, they should usually be removed before showering or swimming. Soap, shampoo, chlorine, salt water and pressure can damage the devices.
What does IP68 mean on hearing aids?
IP68 means the device is dust-tight and has strong water-resistance under defined test conditions. It does not mean the hearing aid is safe for all water exposure or that it should be intentionally submerged.
What should I do if my hearing aids get wet?
Wipe them with a soft, dry cloth and place them in a suitable drying cup or drying box. Do not use direct heat. If they do not work after drying, contact your hearing care professional.
Can hearing aids handle sweat?
Modern hearing aids are usually designed to tolerate normal sweat and daily moisture exposure. If you sweat a lot, drying products and regular cleaning are especially important.
Why does my hearing aid sound weak even though it is not damaged?
The most common causes are blocked wax filters, dirty domes, moisture, low battery power or dirt around the microphone openings. Check and clean these parts before assuming the hearing aid is broken.
How long do hearing aids last?
The lifespan of hearing aids depends on the model, use, maintenance and care. Good daily cleaning, safe storage, regular drying and replacing small parts can help extend their working life.