Hearing aids rely on sophisticated electronics, which often leads to concerns about damage from moisture, especially during activities near water. While modern devices are more robust, the ability of a device to withstand water exposure depends entirely on its design and the protective measures employed by the manufacturer. Understanding the technical specifications of your device is the first step in protecting your investment from accidental water damage.
Understanding Water Resistance Ratings
The ability of any electronic device, including a hearing aid, to resist moisture is classified using the Ingress Protection (IP) rating system, a standardized measurement developed by the International Electrotechnical Commission (IEC). This rating consists of the letters “IP” followed by two numbers. The first digit indicates protection against solids like dust, usually a six for modern aids.
The second digit, ranging from zero to eight, determines the level of protection against liquids. A common rating is IP67, meaning the device is dust-tight and can withstand temporary immersion up to one meter deep for approximately 30 minutes. The highest classification is IP68, signifying protection against the effects of continuous immersion under manufacturer-specified conditions. It is important to recognize that “water-resistant” (IP67) is not the same as truly “waterproof,” which refers to devices engineered for prolonged submersion.
Device Compatibility with Water Exposure
Applying these IP ratings reveals that most standard hearing aids are designed for resistance to moisture, not for aquatic activities. Devices worn behind-the-ear (BTE) or those with receiver-in-canal (RIC) designs have external components and microphone ports that are particularly vulnerable to water ingress. Even models with a high IP67 rating are primarily protected against accidental, brief exposure, such as dropping the device momentarily or getting caught in light rain.
When considering swimming or full submersion, standard hearing aids must be removed. Prolonged exposure to water, especially chlorinated or saltwater, can erode internal components and void warranties. The complex circuitry is not designed to function while submerged. Similarly, showering or bathing necessitates removal, as direct spray and high humidity can overwhelm the protective seals.
For less intense scenarios, such as heavy perspiration or walking in a downpour, devices with higher IP ratings, like IP68, offer reliable protection. These devices are engineered to withstand greater moisture exposure, but they should still be dried immediately after the event.
Specialized Waterproof Hearing Solutions
For individuals who require hearing assistance during water activities, specialized technological solutions exist. Certain manufacturers offer truly waterproof hearing aids, often featuring an IP68 rating, which allows for full submersion in water up to a shallow depth (typically around 1.6 feet) for a set duration. These devices use sealed casings, reinforced microphone ports, and water-repellent nano-coating to ensure functionality while submerged.
These specialized devices are designed for swimming or rigorous water sports. They often involve non-removable, rechargeable batteries housed within the sealed unit, eliminating the vulnerable battery door found on standard aids. If a dedicated waterproof device is not an option, users can utilize protective accessories. External solutions include specialized waterproof sleeves or protective headbands used to secure aids and minimize contact during light splashing. These measures offer temporary protection but do not allow for full submersion.
Emergency Care for Accidental Water Exposure
If a standard hearing aid is accidentally exposed to water, immediate and specific steps are necessary to minimize potential damage. First, quickly retrieve the device and immediately power it off to prevent electrical short circuits. If the device uses disposable batteries, the battery door should be opened, the battery removed, and the compartment left open to encourage air circulation.
Next, the exterior should be gently wiped dry using a soft, absorbent cloth to remove surface moisture. It is important to avoid high-heat sources like a hairdryer or oven, as excessive heat can melt or warp the delicate internal components.
After the initial drying, the device should be placed in a dedicated hearing aid dehumidifier or drying kit. These devices use either desiccants or controlled heat to safely draw out residual internal moisture over several hours. If the device does not function correctly after a full drying cycle, professional service from an audiologist is required, as internal corrosion or component failure may have occurred.