3M Peltor Optimum III Over Head Ear Muffs H540A

This 3M peltor optimum III ear defender is for use in highly noise environments. It has double casing technology that minimises resonance in the holder casing. It gives maximum high frequency muffling while still easy to understand speech and signals. The sealing rings are are broad and filled with soft plastic foam for the best fit and low contact pressure. It is suitable for tradesmen like carpenters, factory workers, warehouse, engineering, machinery plant personnel