Question: What is the dual hearing protection level while using formable ear plugs with nominal NRR-27 and earmuffs with listed NRR-18. OA) 23 decibels O B)

What is the dual hearing protection level while using formable ear plugs with nominal NRR-27 and earmuffs with listed NRR-18. OA) 23 decibels O B) 25 decibels OC) 32 decibels OD) 45 decibels Previous Page Next Page Page 17 of 17

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