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Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...

The Occupational Safety and Health Administration (OSHA) on Sept. 25 issued a final rule approving two additional quantitative fit testing protocols for inclusion in its Respiratory Protection ...

As the world is responding to the COVID-19 outbreak, fit testing respirators for healthcare workers and first responders remain vital to respiratory protection programs to reduce exposure to the ...