Studies and publications on hearing protection and noise

In what situation is double hearing protection required?

When the attenuation of a single hearing protection device is no longer enough to ensure the hearing protection of its wearer.

Remember that hearing protection devices, as well as double hearing protection, are only a recommended solution, as a last resort when all other means to reduce noise at the source have been exhausted.

We will see how to determine the sound level at which it becomes necessary to use double hearing protection.

We will also see how to calculate the attenuation provided by this double protection and which hearing protection device is predominant in the calculation, the attenuation of the two combined systems being much lower than the sum of the combined attenuation.

Download the complete file


HearingProTech is a department of Arta Group. Its mission is to perform and disseminate research, analyses, and tools to aid in the selection of personal hearing protection devices. Composed of technical and scientific experts, HearingProTech aims to advance knowledge in this area and make it more easily accessible.