Abstract: Chemical engineering laboratory desires to spread over occupational health and safety to decrease some issues as fire and toxicity. Consequently, to develop about occupational health and safety, the workers, and students in chemical laboratories in hospitals should be given some information and awareness of how to utilize occupational health and safety. This paper pursues to explore the effect of occupational health and safety on employees’ chemical engineering laboratory. It also explores the different categories of hazardous factors in the health of labor