Taking care of hearing aids comes down to a few consistent habits: daily cleaning, moisture control, and protecting them from heat and chemicals. These small devices sit in one of the warmest, most moisture-rich environments on your body, so earwax, sweat, and humidity are constant threats to their performance. A good routine keeps them working well and can significantly extend their lifespan.
Daily Cleaning Basics
Every evening when you take your hearing aids out, give them a quick wipe-down with a soft, dry cloth and brush away any visible wax or debris. Check the microphone openings for obstructions. This takes about a minute and prevents the kind of buildup that gradually dulls sound quality without you noticing.
A basic cleaning kit includes a soft-bristle brush for loosening wax and dust, a wax pick or loop for clearing stubborn buildup, and a vent cleaner (a thin flexible wire) for air vents. If you wear behind-the-ear models, an air blower helps dry out tubing. Only use disinfectant wipes or sprays specifically made for hearing aids. Standard alcohol wipes can damage the finish and internal components.
The cleaning process varies slightly by style. For behind-the-ear and receiver-in-canal models, focus on wiping the dome (the small tip that sits in your ear canal), brushing the microphone port, and cleaning the battery compartment or charging contacts with a lint-free cloth. For in-the-ear and in-the-canal models, use a brush on the microphone cover, receiver, and vent openings, then clear the sound outlet with a wax pick or loop. Never use water, alcohol, or chemical cleaners on in-the-ear devices.
Replacing Wax Guards
Wax guards are tiny filters that sit over the speaker opening and stop earwax from reaching the internal components. When they get clogged, you’ll notice reduced volume, muffled sound, distortion, or increased feedback and whistling. If the guard looks discolored or packed with wax, it’s time for a swap.
For most people, replacing wax guards once a month works well. If your ears produce a lot of wax, you may need to change them every one to two weeks. Replacement kits typically come with a small tool that removes the old guard and inserts a new one in a single motion. Your audiologist can walk you through it the first time.
Managing Moisture
Moisture is the leading environmental threat to hearing aid electronics. Sweat, humidity, and even condensation from temperature changes can work their way inside the casing. A drying routine each night makes a real difference in long-term reliability.
You have two main options. A drying jar (also called a passive dryer) uses desiccant beads that absorb moisture overnight. You simply place your hearing aids inside before bed. The beads need to be replaced regularly as they lose effectiveness. Drying jars handle everyday moisture well but don’t sanitize the devices.
An electric dryer uses heat and a fan, and some models include UV light that kills bacteria. Electric dryers are better at removing heavier moisture, like after getting caught in rain or accidental submersion. They also last a couple of years without replacement parts. If you have rechargeable hearing aids that need to charge overnight, an electric dryer with a fast cycle is the better choice since a drying jar requires the devices to sit inside all night.
Earmold and Dome Care
If your behind-the-ear hearing aids have custom earmolds, these are the one part you can wash with soap and water. Gently disconnect the soft earmold tubing from the ear hook, then wash each earmold with mild hand or dish soap and warm water. Make sure the hearing aids themselves stay completely dry and stored safely during this process. Let the earmolds dry thoroughly before reattaching them.
Silicone domes (the soft tips on receiver-in-canal models) can be wiped clean daily but should be replaced periodically. Your audiologist will let you know the right schedule based on wear and wax buildup.
Storage and Environmental Hazards
When you’re not wearing your hearing aids, store them indoors in a cool, dry spot. Avoid leaving them in your car, where temperatures can climb dramatically. A vehicle parked in 95-degree weather can reach 116 degrees inside within an hour. Direct sunlight is equally risky, even on a windowsill.
Hairspray and dry shampoo are common culprits for microphone damage. The fine particles coat microphone ports and reduce sound quality over time. The simple fix: apply all hair products before putting your hearing aids in. The same goes for perfume, cologne, and other aerosol sprays. Remove your hearing aids before applying sunscreen or lotion to your face and ears, and make sure your hands are clean and dry before handling them.
Battery Care
If your hearing aids use disposable zinc-air batteries, there’s a simple trick that extends their life. After peeling off the adhesive tab (which activates the battery by exposing it to air), wait five full minutes before inserting it. This gives the battery time to fully activate and can add two to three extra days of life, a meaningful boost when typical battery life runs just two to seven days depending on the model.
Store unused batteries at room temperature and keep the tabs on until you’re ready to use them. Carrying loose batteries in a pocket or bag where they can touch coins or keys risks short-circuiting. A small battery case solves this.
For rechargeable models, wipe the charging contacts on both the hearing aids and the charger with a lint-free cloth regularly. Dirty contacts lead to inconsistent charging.
When Cleaning Solves Sound Problems
If your hearing aids start whistling, the cause is often simpler than you’d expect. Earwax blocking your ear canal prevents sound from traveling forward, so it bounces back into the device and creates feedback. A clogged receiver or vent on the hearing aid itself does the same thing. Before assuming something is broken, clean the vents and wax guard, and consider having your ears professionally cleaned if buildup is heavy.
Weak or muffled sound is another problem that’s frequently maintenance-related rather than mechanical. A clogged wax guard, blocked microphone port, or moisture in the tubing can all reduce output. Working through a quick cleaning checklist often restores normal performance.
Professional Maintenance
Even with careful daily cleaning, schedule a professional cleaning with your audiologist every six months. They have specialized tools that reach delicate, hard-to-access internal areas you can’t safely clean at home. These visits also give your audiologist a chance to check for component wear, test performance, and adjust programming if your hearing has changed. Most audiology practices include these cleanings as part of ongoing care.