3M Ear defender OPTIME III EN 352-1-3 SNR 35 dB padded head band double-shell cups

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SKU:04046719386918

Wide, cushioned head band
– Double wire band
– Double-shell cups for maximum attenuation Application for extreme noise levels: Airports, mining, marine engine rooms New technology: Double-shell construction minimises resonance in the cups. This technology offers maximum high-frequency attenuation. At the same time it allows signals and speech to be easily heard and also offers optimum attenuation of low frequencies. EN 352-1 and -3 / (SNR) = 35 dB / H value = 40 dB / M value = 32 dB / L value = 23 dB Further technical information:
– L-value: 23dB
– Property: Double-shell cups
– M value: 32dB
– H value: 40dB
– Subject to audit: Yes