Recent cases of casualty of workers in rubber latex factories due to hydrogen sulfide call for urgent attention to better understanding, prevention of damages in working and living in risky environments, and promotion of public and labor awareness. Specific responsible organization here is the subcontractor of latex factories. H 2 S characteristics, sources and symptoms from exposure are emphasized. Proper practice should be followed strictly along with better cooperation among experts for the main objective in saving lives and greater safety in living and working.