The most important factor when selecting an earmuff is the level of comfort it offers. That's because if the muff is not comfortable, it simply will not be worn for the full exposure time. Elvex introduces two models that are designed to maximize comfort for extended periods of use. Factors that affect comfort, such as headband force and cushion density have been maximized with these models. In spite of the comfort advantage, these muffs (HB-640 and HB-650) offer 26 and 29 dB NRR, and the corresponding European (CE EN-352) ratings are 32 and 34 dB SNR.
