Setyawan, Y.A., Arini, S.Y. and Widodo, S. 2022. Evaluation of the Implementation of the Local Exhaust Ventilation System in the Testing Laboratory. The Indonesian Journal of Occupational Safety and Health. 11, 1 (Mar. 2022), 83–93. DOI:https://doi.org/10.20473/ijosh.v11i1.2022.83-93.