ZION SAFETY PROTECTOR ENDOAURAL
For noise environment dominated by frequencies below 500Hz.the c-weighted environmental noise level should be used.The NRR used in the above example was achieved under laboratory conditions.Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise,the noise reduction rating [NRR] is based on the attenuation of continuous noise and may not be an accurate indicator of the protection attainable against impulsive noise such as gunfire.
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For noise environment dominated by frequencies below 500Hz.the c-weighted environmental noise level should be used.The NRR used in the above example was achieved under laboratory conditions.Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise,the noise reduction rating [NRR] is based on the attenuation of continuous noise and may not be an accurate indicator of the protection attainable against impulsive noise such as gunfire.
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