For years, we’ve known many workers in the “real world” do not achieve the same amount of attenuation from hearing protectors as indicated on the EPA required Noise Reduction Rating (NRR) label.

One difficulty with hearing protective devices (HPDs) is selecting the right one. Careful forethought is required to select HPDs that will help ensure that workers obtain maximum effective protection.

Even with careful attention to administrative and engineering controls, hearing protection devices often are the first and only choice when it comes to protection from hazardous noise exposure. The ...

A Noise Reduction Rating (NRR) describes how many decibels a particular product lowers noise. For instance, a product with a 30 NRR will reduce a 100-decibel (dB) noise level to 70 dB.

For over 30 years, the U.S. Environmental Protection Agency (EPA) has used the noise reduction rating (NRR) to measure the attenuation of hearing protector devices (HPD). Based upon idealized ...

In anticipation of the EPA's expected change to the Noise Reduction Rating (NRR), Howard Leight has issued a brochure that explains known details of the proposed changes for hearing protectors. In ...