NIOSH TEB-APR-STP-0003 Exhalation resistance

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NIOSH TEB-APR-STP-0003 Exhalation resistance

Exhalation resistance (42 CFR Part 84.172)

Respirators are tested for resistance to exhalation air flow by measuring the differential pressure across the filter with airflow moving from inside to outside of the mask. OIC utilizes the Dwyer 475-00-FM Digital Manometer for high-precision pressure measurement.