Moisture is one of the top three threats to the life of your hearing aids. Sweat, moisture and water can easily penetrate the delicate components inside the device, leading to malfunction and costly repairs. That’s why it’s critical to use a specialized hearing aid dehumidifier or dryer for proper maintenance.
Understanding the effects of moisture on hearing aids
Like most electronics, hearing aids are susceptible to water damage. Whether it’s rain, high humidity or sweating during activity, exposure to moisture can significantly reduce performance and cause irreversible damage. Studies have shown that the vast majority of hearing aids in daily use contain moisture inside, which is a major cause of out-of-warranty repair needs. Using a specially designed dehumidification tool is a great way to protect your hearing aids.
Why hearing aids are susceptible to moisture damage
Unlike many sealed electronics, hearing aids require exposed components to work effectively. Microphones and receivers (loudspeakers) are vital for providing clear sound, but they are particularly vulnerable to moisture. This vulnerability manifests itself both in direct contact with water, such as in the shower, and in prolonged exposure to humid air.
Recognizing the Signs of Moisture Damage
Be alert for signs of moisture that may affect your hearing aid. These signs include distorted or muffled sound quality, intermittent operation (e.g., sudden changes in volume or unexpected shutdowns), and visible signs such as corrosion or condensation marks on the inside of the device. Proactive use of a hearing aid dehumidifier or dryer is the best way to guard against these signs.
Understanding Hearing Aid Dehumidification Tools
There are two primary solutions for protecting hearing aids from moisture damage: hearing aid dehumidifiers and hearing aid dryers. The following section explores how each solution works and when to use it.
Hearing aid dehumidifiers
These tools protect your hearing aids by extracting moisture from the environment. Most dehumidifiers operate passively and require no batteries or power. They are designed as compact containers with hygroscopic material (desiccant) that absorbs moisture from inside the hearing aid. For optimal performance, the desiccant must be reactivated or replaced periodically. Dehumidifier boxes are ideal for overnight storage when not in use for long periods of time.
Hearing aid dryers
Active dryers provide better results when hearing aids are fully submerged in water or exposed to moisture for extended periods of time. Although similar in appearance to dehumidifiers, these devices utilize advanced drying technology. They typically require battery power or connection to a power source. Some models utilize UV-C ultraviolet technology to kill bacteria while drying, while others use gentle heating or airflow systems. Dryers provide rapid humidity control in emergency situations.
Choosing a Dehumidifier or Dryer for Hearing Aids
Choosing the right moisture protection for your hearing aids requires careful consideration of several key factors. While both dehumidifiers and dryers can provide solutions, the best choice depends on your individual situation:
- Daily life: Individuals who spend a lot of time outdoors, live in humid areas or are prone to heavy sweating should prioritize a dedicated hearing aid dryer. This is vital if your device is prone to getting thoroughly wet or even submerged in water. For maximum protection in these situations, it is highly recommended that you choose a waterproof hearing aid model that can withstand high levels of moisture from the outset.
- Local weather: Living in an area with consistently high humidity, it is wise to use a dehumidifier on a regular basis to prevent moisture damage. Please note that in extremely humid climates, the desiccant inside these devices will need to be replaced more frequently to remain effective.
- Hearing aid technology: The specific type of hearing aid you wear can affect whether a dehumidifier or dryer is more appropriate. If your device uses rechargeable batteries, then a dehumidifier is usually the safer choice. Electronic dryers may damage rechargeable batteries with prolonged use.
How to Optimize Hearing Aid Device Maintenance and Best Practices
Tips for using a hearing aid dehumidifier
Use a hearing aid dehumidifier every night after removing your hearing aid. This protects the hearing aid from everyday moisture and perspiration. For the use of removable batteries:
- Remove the batteries and open the battery compartment
- Then place the hearing aid in the dehumidifier.
- Not sure when to renew your desiccant? Most hearing aids are equipped with color-changing desiccant beads that visually indicate when they need to be recharged or replaced.
Tips for using your hearing aid dryer
Drying time varies by model – some models are ready in 30 minutes, others require longer drying times. For best results:
- Wipe the exterior thoroughly with a dry cloth
- Remove the battery (if possible) and leave the battery compartment open.
- Place the hearing aid in the dryer
- This ensures complete dehumidification while protecting the internal components.
Other ways to dry your hearing aids
Even if you don’t have a dedicated dehumidifier or dryer, accidentally getting your hearing aids wet may not be a bad thing. Stay calm – there are other effective drying methods.
- The first key step is to remove the battery immediately. This action helps prevent moisture from causing potential electrical damage and corrosion to the sensitive components inside. Handle the hearing aid carefully during this process.
- Gently shake the hearing aid on a soft, absorbent surface, such as a towel. This helps to remove and dislodge any visible water droplets from the housing or microphone/outlet holes. Avoid violent shaking to avoid impact damage.
- To completely remove moisture, place your battery-less hearing aid on a clean, dry paper towel or in an airtight container with uncooked, dry rice. Leave overnight. The rice will act as a desiccant, actively absorbing any residual moisture in the hearing aid.
Published studies have shown that under these circumstances, ordinary rice dries comparably to other commercial desiccants. Keep in mind that this is a practical solution for unforeseen situations, not a substitute for specialized drying equipment when it is available.
How to Protect Your Hearing Aids from Moisture
Moisture is a constant threat to your hearing aids, even when you don’t expect it. While avoiding all damp conditions isn’t always possible, taking proactive steps is crucial for keeping your devices functioning reliably and extending their lifespan. Here’s what our clinic recommends for effective moisture defense:
1. Shield Them During Activity and Humidity: When you’re working out or spending time in muggy environments, sweat and ambient moisture can seep into sensitive components. Using specialized hearing aid sweatbands or protective covers creates a vital barrier, significantly reducing the risk of internal damage during these high-exposure times.
2. Keep Them Dry Around Water: Hearing aids and submersion simply don’t mix. Always remove your devices before swimming, bathing, or showering. Even brief exposure to direct water flow or steam can cause immediate and severe damage to the intricate electronics and microphones inside.
3. Weatherproof Your Ears: Rain and snow pose a direct threat. Protect your investment by keeping your head covered during wet weather. A hooded jacket, a water-resistant hat, or simply using an umbrella effectively shields your ears and the hearing aids resting in or behind them from precipitation.
4. Make Nightly Cleaning a Habit: Throughout the day, moisture, skin oils, and earwax naturally accumulate on your hearing aids. Gently wiping them down every evening with a clean, dry, lint-free cloth removes this buildup. This simple routine prevents grime from hardening and moisture from lingering overnight, protecting delicate electrical contacts and microphones.
5. Overnight Drying is Essential: Don’t just wipe and forget. Placing your hearing aids in a dedicated dehumidifier or drying kit every single night is non-negotiable for long-term protection. These devices use safe, gentle warmth or desiccants to actively draw out any residual moisture trapped deep inside, ensuring they start each day completely dry and ready to perform. Think of it as essential overnight maintenance.
