How to protect your hearing aids from sweat and moisture damage
Humidity and sweat can affect how your hearing aids perform. This guide offers expert tips to help active users protect their devices and stay connected, hearing clearly, no matter the conditions.
Published 9/30/2025,
Updated 9/2/2026
2 min read
Reviewed by Bloom Hearing Specialists New Zealand
Hearing aidsTips and tricks
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Hearing aid damage from moisture
Moisture and sweat damage
Moisture damage
caused by everything from rain, sweat, or an accidental splash – is one of the leading reasons clients need hearing aid repairs. This often results in issues like electrical shortages, condensation and corrosion.1
Batteries
Batteries also drain faster when exposed to moisture, and microphone or receiver trouble can quickly turn sound from clear to fuzzy. But with the right protection and care, you can keep your hearing aids working reliably every day.
Sweat can seriously affect your hearing aids, especially parts like the microphone and amplifier. If you wear behind-the-ear hearing aids, try moisture-resistant covers - they're built to keep out sweat, dirt and weather. And if sweat does sneak in, don't worry: using a hearing aid dryer and silica gel can help minimise any issues and keep you hearing your best.
K. Durrheim
Hearing care specialist
Helpful information
Signs of moisture damage:
- Muffled or distorted sound
- Intermittent functionality
- Crackling or static noise
- Battery drains faster than normal
- Device shutting off unexpectedly
If you notice any of these signs, take action right away. Quick, simple steps can help restore your hearing aids and get you back to living life fully.
Steps to protect your hearing aids from moisture damage
8 ways to prevent sweat and moisture damage in hearing aids
#1 Choose water-resistant hearing aids
There are water-resistant hearing aids to fit every lifestyle or job.
Not all hearing aids provide the same level of protection. Some withstand occasional splashes, while others are designed for advanced water resistance.
An IP rating (Ingress Protection rating) is a standard that shows how resistant a device is to dust and water. For hearing aid wearers, it helps indicate how well your device can handle everyday elements like moisture, sweat and dust.
The IP rating includes two numbers. The first digit shows how well the device is protected against solid particles (like dust). The second digit shows how resistant it is to liquids (like water or sweat). The higher the numbers, the more durable your hearing aids are against daily challenges.
#2 Use hearing aid dryers or humidifiers
Keeping your hearing aids dry helps them continue to work properly, and it can also extend their lifespan. A hearing aid humidifier or drying station removes moisture and also cleans and sanitises your devices. Bloom Hearing offers a range of electric, rechargeable or capsule-based drying solutions to fit your needs.
If your hearing aids are prone to excess moisture, whether it be from water, sweat or even hairspray and perfume, make sure you use a humidifier regularly to keep them working well.
If your hearing aids are prone to excess moisture, whether it be from water, sweat or even hairspray and perfume, make sure you use a humidifier regularly to keep them working well.
#3 Try hearing aid sweat beads
If you’re active or live in a humid place, sweatbands that slip over your hearing aids are a smart move – even for water-resistant devices. They’ll absorb moisture before it can reach your hearing aids. It’s an easy way to keep active and confident, wherever you go.
#4 Opt for waterproof covers for hearing aids
Sweat or waterproof covers add another layer of protection, helping keep out moisture from your day-to-day activities.
Wearing caps or sweat bands together with waterproof covers help preventing moisture damage on your hearing aids
#5 Store hearing aids properly
Always store your hearing aids in a cool, dry place, and in a protective case, not in damp spots like the bathroom or near sinks.
#6 Clean moisture-prone areas
Wipe your hearing aids daily with a soft, dry cloth, and focus on any spot where moisture might collect, like microphones, battery doors or charging ports. A quick daily wipe and clean of your hearing aids can help prevent long-term damage.
#7 Avoid moisture
Avoid wearing your hearing aids in the shower, swimming pool or sauna. To prevent moisture damage, apply hairspray or perfume before inserting your hearing aids, ensuring that the spray is not directed near the devices. If your hearing aids ever get wet, dry them as soon as possible to avoid long-term issues.
#8 Book regular check ups
Regular check-ups help keep your hearing aids working their best. Book a visit with your hearing care professional every four to six months, and enjoy clear hearing with confidence.2
How to prevent damage with good hearing aid care
Hearing aid care and maintenance is key
If you suspect moisture damage, contact your hearing care professional promptly for guidance and support. With simple, regular care, you can stay ahead of sweat and moisture.
Reach out for professional support and personalised recommendations about water-resistant hearing aids and useful accessories for your lifestyle.
Reach out for professional support and personalised recommendations about water-resistant hearing aids and useful accessories for your lifestyle.
What to do if your hearing aid gets wet:
Turn them off immediately
Remove the battery or disconnect from the charger
Dry with a soft, dry cloth; never use heat or a hair dryer
Place them in a drying kit or dehumidifier overnight
Contact your audiologist if performance doesn’t return
Taking quick action will help restore performance and keep you connected.
Book an appointment in a store close to you
Sources:
1. The Hearing Journal. Hay, M.E. and Zielinski, R.Q. (2022) ‘Moisture in hearing instruments: Problematic, prevalent, and professionally preventable’, The Hearing Journal, 75(3), pp. 20, 22–24.
3. Bloom Hearing: Looking after your Hearing Aids for Maximum Performance.
1. The Hearing Journal. Hay, M.E. and Zielinski, R.Q. (2022) ‘Moisture in hearing instruments: Problematic, prevalent, and professionally preventable’, The Hearing Journal, 75(3), pp. 20, 22–24.
3. Bloom Hearing: Looking after your Hearing Aids for Maximum Performance.
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