How do I choose my hearing protection ?
The unit used to calculate the sound intensity level is the dB (Decibel). Here are some examples of sound volumes, measured in decibels: a silent library = 20 - 30 dB; a truck = 90-100 dB.
The purpose of hearing protection is to protect the user against possible impact noise and to reduce the sound exposure level below the upper action limit value (85 dB(A)) and if possible below the lower action limit value (80 dB(A)).
Each sound has a frequency. A high-pitched sound emits a high frequency while a low-pitched sound emits a low frequency. The measurement of the sound power (dB) varies according to the frequency. The SNR (Signal to Noise Ratio) is the average value that a hearing protection device can offer in a frequency range from 63Hz to 8000Hz.
Exposure to 80 dB for 8 hours can have a significant impact on your hearing cells and could eventually lead to tinnitus (ringing in the ears) or even deafness! These problems can be prevented by wearing hearing protection.
There are several types of hearing protection depending on the level of noise you are confronted with in your work environment.
You will find earplugs and earmuffs in our range of protections for all types of noise exposure. We have both reusable and disposable solutions
Types of hearing protection
- Wadding cap
- Semi-rigid plastic caps
- Semi-porous foam plugs
- Individually molded caps
- Shells with headband
Choosing hearing protection
- The protection chosen should not be the most effective in theory, but the one that is best accepted and worn the longest. Theoretical attenuation is generally not verified in practice because PPE is poorly placed and/or moves with the work.
- The theoretical attenuation of PPE is of little importance as long as it attenuates by at least 10 to 15 dB in practice (hence ease of use).
Selection criteria in order of priority
- Not dangerous in itself and bearing the CE label
- Compatible with other PPE (helmet, mask...)
- Easy to use: easy to place, not cumbersome (plugs connected by a cord and not by a rigid hoop because noise due to the friction of the hoop on the garment, headband allowing the shells to be worn around the neck when not in use without hindering head movements, porous cushion of the shells to let perspiration pass through).
- Aesthetics: colors, shapes
- Combats overprotection due to physical discomfort, interference with communications or interference with work.