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Attenuation ratings

Short description of our attenuation ratings and the meaning of the symbols.
(* RNR = Recommended Noise Rating)






RNR*< 85dB
You do not have to wear hearing protection, but it's available
to your workers.






RNR* 83-93dB
You are above the level, hearing protection is compulsary.






RNR* 87-98dB
You are above the level, hearing protection is compulsary.
Ideal for high frequency noise.






RNR* 94-105dB
You are above the level, hearing protection is compulsary.
Ideal for high and medium frequency noise.






RNR* 95-110dB
You are above the level, hearing protection is compulsary.
Ideal for all frequencies.