Ear defenders for safety helmets. Adjustable in height. High flexibility ABS arms and cups. Cups padded with synthetic foam. Can be used on their own or with «VISOR HOLDER» faceshield holder. Suitable for GRANITE, SUPER QUARTZ, QUARTZ, ZIRCON and BASEBALL DIAMOND safety helmets.
Cup & headband: ABS.
Cushion: Foam & PVC.
USA STANDARDS
-ANSI S3.19-1974 : American National Standards Institute
-NRR – (Noise Reduction Rating - Noise Reduction Rating) : NRR 21 dB
Certif. S mark Resolution 896/99
-EN352-3 : Hearing protection : Ear-Muffs attached to an industrial safety helmet
-Average noise attenuation : SNR 27,3 dB
-High frequency attenuation : H 30,7 dB
-Medium frequency attenuation : M 25,2 dB
-Low frequency attenuation : L 16,6 dB
REGULATION (EU) 2016/425
-EN352-3:2002 : Hearing protection : Ear-Muffs attached to an industrial safety helmet
-Average noise attenuation : SNR 24 dB
-High frequency attenuation : H 27
-Medium frequency attenuation : M 21
-Low frequency attenuation : L 14
-Sizes / Dimensions : S/M/L
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