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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • Most sheetmetal workers will be protected if they wear a hearing protector with a noise-reduction rating (NRR) of 12 dB. For most activities, an NRR higher than 12 dB will block too much sound and may interfere with communication, including warning signals.
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