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×Medium Attenuation Ear Defender
Medium Attenuation Ear Defender
The N4 ear defender has a wire band that fits easily around the neck making it ideal to wear with a safety helmet. It offers greater performance when compared to traditional helmet-mounted ear defenders. Soft ear cushions and an adjustable head strap allow for a secure, comfortable fit.
SNR=32dB H=35dB M=30dB L=22dB | |||||||
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Frequency (HZ) | 125(Hz) | 250(Hz) | 500(Hz) | 1000(Hz) | 2000(Hz) | 4000(Hz) | 8000(Hz) |
Assumed Protection | 15 | 19.3 | 29.5 | 34.5 | 33 | 35 | 36.7 |
Mean Attenuation | 18.1 | 21.1 | 31.4 | 37.7 | 35.9 | 38.4 | 39.4 |
Standard Deviation | 3.2 | 1.8 | 1.8 | 3.2 | 2.9 | 3.3 | 2.7 |