
MAGNY HELMET 2 ПРОТИВОШУМНЫЕ НАУШНИКИ (SNR 30 dB) Цвет
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Размер
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EN352-3:2002 Hearing protection : Ear-Muffs attached to an industrial safety helmet
SNR 30 dB | Average noise attenuation | |
H 32 dB | High frequency attenuation | |
M 28 dB | Medium frequency attenuation | |
L 22 dB | Low frequency attenuation | |
S/M/L | Sizes / Dimensions |
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USA STANDARDS
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ANSI S3.19-1974 American National Standards Institute
NRR 25 dB | NRR – (Noise Reduction Rating - Noise Reduction Rating) |