The safest way to disinfect hearing aids is with wipes, sprays, or soaks specifically formulated for hearing devices. Standard household disinfectants, rubbing alcohol, and even hand sanitizer can permanently damage the plastic housing, microphones, and internal circuits. Daily wiping combined with weekly deep cleaning and monthly part replacement keeps your devices hygienic without shortening their lifespan.
Why Hearing Aids Need Regular Disinfection
Your ear canal is the only skin-lined dead end in the human body. It traps moisture readily and creates an ideal environment for bacteria and fungi to thrive. When you insert a hearing aid, you’re adding a warm, snug object that raises humidity even further and gives microbes a surface to cling to.
A study analyzing samples from 41 hearing aid users identified a wide range of bacteria on their devices, including Staph aureus, MRSA, Pseudomonas, E. coli, and Acinetobacter species. Fungal organisms like Aspergillus and Candida also colonize hearing aids, particularly after antibiotic use alters the ear’s normal bacterial balance. These aren’t just theoretical concerns. Hearing aid ear molds are a recognized risk factor for otitis externa (swimmer’s ear), which affects roughly 1 in 100 to 1 in 250 people annually and is most commonly caused by the same Pseudomonas and Staph bacteria found growing on hearing aids.
What Not to Use
Before reaching for whatever cleaning product is under your sink, know that many common disinfectants will destroy hearing aids. Bleach and ammonia-based cleaners break down the plastic housing and corrode internal circuits. Rubbing alcohol, despite being a go-to disinfectant for many surfaces, chemically degrades the plastic, silicone, rubber, and acrylic materials that hearing aids are made of. The American Academy of Audiology specifically warns against using rubbing alcohol on audiological devices.
Hand sanitizer is another common culprit. The alcohol and hydrogen peroxide in many sanitizers can damage microphones and strip protective coatings. Soap and water also pose risks to electronic components. If you’ve been cleaning your hearing aids with any of these products, switch to a hearing aid-safe alternative as soon as possible.
Safe Disinfection Products
Hearing aid-specific disinfectants come in three main forms: towelettes, sprays, and soaking solutions. All are formulated to kill bacteria and fungi without degrading the plastics, silicone, and acrylic that make up your devices. You can find these at audiology clinics, hearing aid retailers, and online. Popular brands include AudioWipes, CaviWipes (the hearing-safe version), and various manufacturer-branded cleaning kits.
For the towelettes, simply wipe down all external surfaces after removing the device from your ear. Sprays work the same way: apply to a soft cloth first, then wipe the device. Soaking solutions are used with a small tray or an ultrasonic cleaning machine, which uses high-frequency vibrations to dislodge debris from hard-to-reach crevices. Your audiologist can recommend the best option for your specific hearing aid style.
UV-C Sanitizing Cases
UV-C sanitizing cases offer a hands-off disinfection option that doubles as a drying and charging station for rechargeable hearing aids. These devices use ultraviolet light to kill pathogens on surfaces without any chemical contact.
Lab testing shows UV-C light is highly effective against the exact bacteria found on hearing aids. On plastic surfaces (the most relevant material), a 10-minute UV-C cycle reduced Pseudomonas aeruginosa by 100%, Staph aureus by 99.9%, and Candida (a common ear fungus) by 89.3%. These are strong results, especially for the bacterial species most likely to cause ear infections. The main limitation is that UV-C only works on surfaces the light can reach, so you still need to physically remove earwax and debris before placing your devices in the case.
Daily, Weekly, and Monthly Routine
A consistent cleaning schedule prevents buildup and catches problems early.
Daily: When you remove your hearing aids at night, gently wipe all outer surfaces with a hearing aid-safe disinfectant wipe or a dry, soft cloth. Use the small brush that came with your devices (or a dedicated hearing aid brush) to clear wax and debris from the microphone openings and sound outlet. Check that nothing is blocking the ports. If you have a UV-C case, place your aids inside overnight.
Weekly: Do a deeper clean of earmolds or tubing if you wear behind-the-ear (BTE) models. Detach the earmold from the hearing aid body, then clean the mold and tubing with the method your manufacturer recommends. Some earmolds can be soaked briefly in a hearing aid-safe solution; the electronic components never can. Let everything dry completely before reattaching.
Monthly: Replace your wax guards. These are small plastic filters that sit over the speaker opening and prevent earwax and moisture from reaching the internal components. If you notice muffled sound, reduced volume, or changes in tone before the month is up, swap the wax guard sooner. People who produce more earwax may need to change guards every one to two weeks. The replacement process varies by manufacturer, but most use a small stick tool: one end pulls out the old guard, the other pushes in the new one. Monthly is also a good time to inspect your devices for cracks, discoloration, or worn-out domes.
Wax Guards and Sound Quality
A surprising number of hearing aid “malfunctions” are actually just clogged wax guards. When earwax blocks the filter, sound can’t travel through the speaker properly. You might notice the volume dropping, the tone shifting, or the aid going completely silent in one ear. Before assuming something is wrong with your device, try replacing the wax guard. It takes about 30 seconds and often solves the problem entirely.
Your hearing aid kit should include replacement wax guards, and you can order more from your audiologist or directly from the manufacturer. If you’re unsure which type fits your device, bring your hearing aids to your next audiology appointment and ask for a quick demonstration. Once you’ve done it a couple of times, it becomes second nature.
Protecting Your Devices Long Term
Beyond disinfection, a few habits extend the life of your hearing aids and reduce infection risk. Remove your hearing aids before showering, swimming, or applying hair products, as hairspray and gel can clog microphone ports. Store them in a cool, dry place overnight rather than leaving them on a bathroom counter where humidity is high. If you live in a humid climate or sweat heavily, consider a dedicated hearing aid dehumidifier (many UV-C cases include a drying function).
Handle your devices over a soft surface like a towel or bed, so a drop doesn’t crack the housing or dislodge components. Keep them away from pets and small children, both of whom are drawn to small objects. And wash your hands before inserting your hearing aids each morning. Clean hands mean fewer bacteria transferred to the device and, ultimately, into your ear canal.