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['Personal Protective Equipment']
['Respiratory Protection']
10/07/2026
§84.177 Total noise level test—PAPR classes HE and PAPR100.
Noise levels generated by any powered air-purifying respirators that cover the ears (i.e., hood or helmet) will be measured at the entrance to each ear at maximum airflow obtainable and must not exceed 80 dBA.
['Personal Protective Equipment']
['Respiratory Protection']
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