3M 1100 foam ear plugs

3M 1100 foam ear plugs. Roll down PU foam hearing protectors. The soft hypoallergenic material of tapered form provides maximum comfort and low pressure inside the ear canal.This type of hearing protectors are usually used for prolong staying in noisy environments. Polybag of 1 pair. SNR: 37 dB.

Certification:

EN352-2 : 2002 Hearing protection: Earplug 

SNR 37 dB     Standard noise reduction

H 37    High frequency attenuation

M 34   Medium frequency attenuation

L 31    Low frequency attenuation