Every July, the pattern repeats at our Gandhinagar clinic: hearing aids arriving dead, crackling or weak — and in most of them the culprit is the same. Not age, not a fault, but moisture. Between Gujarat’s 44°C summers that soak the device in sweat and a monsoon that pushes humidity past 85%, June to September is the most dangerous stretch of the year for a hearing aid. Here is how to get your device through it.
Why moisture is a hearing aid’s biggest enemy
A hearing aid is a tiny computer with open doors — the microphone ports and receiver (speaker) outlet must stay open to pass sound, which means humid air, sweat and rain mist walk straight in. Inside, moisture corrodes battery contacts, clogs the microphone mesh, and damages the receiver. The symptoms appear gradually: weak or muffled sound, crackling and distortion, intermittent cutting off, batteries draining fast — and finally a device that will not switch on. Sweat is actually worse than rain: it is salt water, and salt accelerates corrosion.
The nightly drying routine that doubles device life
- Every night, wipe the device with a dry cloth or tissue — never wet wipes, water or spirit.
- Open the battery door fully (or remove the battery) so the compartment can breathe.
- Place the device in a drying kit — a sealed jar with silica gel pellets, or better, an electronic dehumidifier box that gently warms and dries it overnight. Both are inexpensive and available at our centre.
- Recharge silica gel when its indicator changes colour — saturated gel dries nothing.
- Never store the device in the bathroom or kitchen, and never leave it in a parked car or on a sunny windowsill.
Monsoon checklist for hearing aid users
- Carry a small zip-lock pouch with a silica sachet in your bag — if you are caught in rain, remove the aids and seal them in immediately.
- Use an umbrella or hood that actually covers the ears, not just the head.
- On heavy-rain days, fit the aids only after towelling your hair and ears fully dry.
- Check tubes and earmoulds weekly — condensation droplets inside BTE tubing block sound and can be blown out or replaced at the clinic.
- Increase drying-kit use to every single night through the season, no exceptions.
Summer sweat care for hearing aid users
For two-wheeler riders, morning walkers and anyone working outdoors in Gujarat’s heat, sweat is the silent killer. Wipe behind your ears and the device body two or three times a day; thin fabric sweatbands or sleeves for behind-the-ear aids absorb sweat before it reaches the electronics. If you exercise, do it without the aids when safe to do so, or dry the devices immediately afterwards. Many newer models carry an IP68 rating — helpfully water-resistant, but not waterproof, and an IP rating does not exempt you from the drying routine.
A pattern we see often at our Gandhinagar clinic: a two-wheeler rider or morning walker whose behind-the-ear aid starts crackling in late July, with the drying kit still sitting unopened in its box at home. Once the nightly routine actually starts, the same device usually behaves through the rest of the season.
| Situation | Do this | Avoid this |
|---|---|---|
| Every night | Dry wipe, open battery door, drying kit | Bathroom or kitchen storage |
| Caught in rain | Remove aids, seal in zip-lock with silica | Wearing them through a downpour |
| Sweaty summer days | Wipe 2–3 times daily, use sweatbands | Leaving the device in a parked car |
| Device got wet | Battery out, 24–48 hours in drying kit | Hair dryer, oven, direct sun, rice jar |
| Each season | Professional clean in June and October | Waiting until the aid goes dead |
My hearing aid got wet in the rain — what now?
Switch it off at once and remove the battery. Wipe everything dry, leave the battery door open, and put the device in your drying kit or a sealed container of silica gel for 24–48 hours. Do not use a hair dryer, oven, direct stove heat or harsh sunlight — heat destroys the electronics faster than the water. The rice-jar trick is a poor substitute, as rice dust enters the ports. If the device stays dead, weak or crackly after drying, bring it for professional vacuum-drying and servicing at our hearing aid repair centre in Gandhinagar — the earlier corrosion is cleaned, the cheaper the fix.
Service before and after the monsoon
The smartest habit of all: a professional cleaning and check-up in June, and again in October. We deep-clean microphone and receiver ports, replace wax guards, domes and tubing, test the device output, and check that your digital hearing aids still match your current hearing. Ten minutes of preventive care each season routinely saves devices that would otherwise land on the repair bench — and helps a good hearing aid serve you for five years or more.
Hearing aid service & repair in Gandhinagar