I know what my noise exposure is, do I need any other information?
Yes!
Raymond
Last Update 4 years ago
Yes. Not only do you need to know the noise level, but you also need to know the noise level at different frequencies.
The frequencies that the noise energy level should be measured at are 63Hz, 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, and 8000Hz.
Armed with this information and the Attenuation Chart, you can select the correct ear defender to bring the noise energy below 80dB(A) at all these frequencies.