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How to calculate your 8 hour equivalent (LAeq,8h)

Noise exposure and Hearing Protection Class

Noise exposure and Hearing Protection Class selection

Selection of hearing protection is based on the eight hour equivalent (LAeq,8h) and not on a peak level. To find the right LAeq,8h you can use the calculator below, and fill in the noise levels at your workplace and how much time you spend in those levels. Please use realistic figures.

For example: An angle grinder that produces 110 dB, is not operated for 8 hours a day, but normally only a couple of minutes of time spread over the day, which can add up to, say 1 hour actively operating it. The time in between might be spent with changing work pieces, welding, reading drawings, communication etc.

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