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What does an NRR rating mean?

NRR, or Noise Reduction Rating, is a rating system set up by the Environmental Protection Agency (EPA) as a guideline that indicates the potential protection a hearing protection device will give in a noisy environment.
Title: What does an NRR rating mean?
Description: A brief definition of NRR rating.
Published: 5/29/2003
Last Edited: 1/16/2023
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