Question: A worker with a 150% dose (92.9 dB) using the U.S. Occupational Safety and Health Administration (OSHA) criteria wants to use a pair of earmuffs

A worker with a 150% dose (92.9 dB) using the U.S. Occupational Safety and Health Administration (OSHA) criteria wants to use a pair of earmuffs with a manufacturer noise reduction rating (NRR) of 18 dB. What is their estimated exposure with the NRR correction factor

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