Frequently asked questions

On average, otoplastics last for 5 years. Because the outer ear changes differently and at different rates for everyone, the individual lifespan can vary greatly from person to person.

That is why we recommend performing an annual leak test instead of replacing the otoplastics after a fixed number of years. This has two major advantages:

• Safety: You prevent someone from walking around with leaking earplugs for years (false sense of security).
• Cost savings: You only replace the otoplastics when they really no longer seal properly, and not unnecessarily early.

The maintenance session will be completely useless without the users. The most important part of the maintenance is the leakproof test. During this test, the product specialist tests whether the otoplastics still blocks the ear canals adequately. In addition to this, the dialogue between the user and the product specialist is very important. Based on the experience, adjustments, such as the damping, can be made.

Applying a standard replacement period (e.g. every 5 years) for otoplastics is neither the safest nor the most cost-effective strategy.

This is because the outer ear changes in a unique way and at a unique speed for each individual. As a result, the actual lifespan of otoplastics varies greatly from person to person.

The risks of a fixed replacement period are twofold:

• Risk of hearing damage (false sense of security): In some users, the ear canal changes more quickly, which means that otoplastics can start to leak after only two years, for example. If they are not replaced until after five years, the employee will have been walking around with a false sense of security for three years, which can lead to irreversible hearing damage.
• Unnecessary costs (waste): For other users, the fit remains good for much longer (e.g. 8 years). If these otoplastics are discarded preventively after 5 years, the company incurs unnecessary costs for replacement that was not yet necessary.

What is the best alternative to a fixed replacement?

Instead of blindly relying on a calendar year, annual checks are the gold standard.

• Annual leak test: By testing earplugs for leaks every year, you can be sure that they still provide adequate protection. Leaky earplugs are replaced immediately, while earplugs that are still in good condition remain in use.
• Maintenance and dialogue: A maintenance appointment provides an important opportunity for contact between the specialist and the wearer. Any complaints, comfort or hygiene issues can be resolved immediately. The filter and the earplug channel are cleared, eliminating any excessive attenuation. This has a positive impact on wear acceptance.