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![What is a Noise Reduction Rating? [ANSI S3.19 Explained]](https://www.creativesafetysupply.com/content/images/articles/earplugs-PPE.jpg "What is a Noise Reduction Rating? [ANSI S3.19 Explained]")
What is a Noise Reduction Rating? [ANSI S3.19 Explained]
