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So how many decibels are 'healthy'? | Silent Windows
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C1S3_Dynamics
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Decibels dB | What are they? — Soundstop.co.uk
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Decibel Levels - Measuring Dangerous Noise — Hearing Health Foundation
Calculate by how much will the sound level decrease if the observer moves from a distance of 2 m to a distance of 20 m from the source.
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![Safe vs. Dangerous Decibel Levels [Infographic]](https://www.captel.com/wp-content/uploads/2019/03/safe-vs-dangerous-decibel-levels-infographic-1-scaled.jpg "Safe vs. Dangerous Decibel Levels [Infographic]")
Safe vs. Dangerous Decibel Levels [Infographic]
Understanding Noise Reduction Ratings (NRR) - Listen Technologies
