How does one know, with the passage of time, that hearing protection devices are still efficiently reducing noise?

Use CAPA© to determine whether your employees' hearing protectors are still reducing noise effectively after years of use. It validates whether the intra-ear hearing protection devices: - Comply with manufacturer specifications - Efficiently protect employees

Cotral Lab offers 3 possibilities for conducting efficiency tests: - Buy the software and equipment to conduct the tests in full autonomy - Borrow the software and equipment to conduct the tests for a limited period - Choose the full service option provided by Hearing Prevention Specialist at your organisation's

Is it true that the size of our ears increases with age and that customised hearing protection devices should therefore be renewed every 5 years?

Several scientific studies have established that the external ear grows throughout life. The custom moulded earplug is generally a replica: - Of a part of the auditory canal - Of a part or even the totality of the earlobe - Of the ear hook, sometimes No study has yet established that ear growth has an impact on the ear canal. As a result, Cotral Lab recommends testing custom moulded earplugs devices at the end of the guarantee period. If they are still efficient, your employees can continue using them to ensure their hearing health. However, if the test reveals that hearing protection devices do not reduce noise as much as they used to, you must renew the devices.