Noise reduction rating 24 dB
Design: disposable earplugs made of polyurethane foam with an innovative hollow-shape inside channel to provide "soft acoustics" and absorption of noise interference from scull bones inside the hearing channel. Unique shape with a ribbed outside surface ensures additional comfort and convenience especially when used by the people with different hearing channel size.
Significant acoustic efficiency of noise absorption while at the same time allowing excellent speech perception under noisy conditions.
Refill pack: 300 pairs.
TR CU 019/2011