Numbers and ratings can help us understand things, but often one number does not tell the whole story. Take for instance the Noise Reduction Rating (NRR) and Personal Attenuation Rating (PAR). Both ratings can be used when trying to determine if a hearing protector is appropriate for a worker, but
ISHN Article: Behind the Numbers, Understanding Hearing Protector Ratings and Fit Testing
by Candy Hagen | Aug 20, 2020 | Safety Network Updates
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