What Is Noise Reduction Rating (NRR) Of A Hearing Protection & How to Calculated it
Noise Reduction Rating (NRR) is a unit of measurement used to determine the effectiveness of hearing protection devices to decrease sound exposure within a given working environment. NRR is sometime referred to under the umbrella term of “Hearing Protection Rating,”. Noise Reduction Ratings can be said to be a set of “rules” that are set … Read more