Louis A Johnson Medical Center seeks a contractor to provide industrial hygiene support, specifically quantitative respirator fit testing, for medical center employees. The contractor will supply all ... Louis A Johnson Medical Center seeks a contractor to provide industrial hygiene support, specifically quantitative respirator fit testing, for medical center employees. The contractor will supply all necessary fit testing equipment (such as TSI PortaCount machines), consumables, and Controlled Air Purifying Respirators (CAPRs) for personnel requiring alternatives to N95 respirators. Training for CAPRs and qualitative fit testing may also be required, depending on operational needs.