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Mmm ear plugs - An Overview

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Noise reduction rating: Examine the NRR before buying. The higher the rating, the more audio the earplugs can block out. (You're not!) They lower sounds by a mean of twenty-two decibels and so are intended to reduced every single frequency fairly evenly, so you don't drop each of the high https://johnathancoxgo.ja-blog.com/23940048/a-review-of-use-of-ear-plugs

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