PT Remco Kota Palembang is one of the crumb rubber industries located in Palembang which produces SIR 20 crumb rubber. The process of making crumb rubber at the factory uses a dryer to dry the rubber. The activity of drying rubber using a dryer will produce an unpleasant odor originating from Hydrogen Sulfide (H2S) compounds which pose a risk to workers health. The purpose of this study was to …