Background: Municipal solid waste workers are workers who involved in street sweeping, waste collection, waste processing, rag picking, waste sorters and waste truck drivers. They play an honorable role in preserving health and hygiene in any country. This job requires much effort to be accomplished, known the nature of the work, workplace conditions, plus predictable and unpredictable variables that track their routine. MSWWs collect plastics, paper, cardboard, wires, glass bottles, rubber materials, sharp metals and harmful electronic materials from landfill sites and garbage collection centers. These can be risky for their health as they are exposed to various infectious agents and toxic substances that may cause illness. Unfortunately, the control of the working conditions and enforcement of appropriate hygienic measures are difficult due to the lack of hygienic standards for biohazardous materials present in the air of the workplace. MSWWs should be treated as a vulnerable group that needs special care. Harmful substances in waste products should be reduced by elimination, substitution, collection techniques or actions in working habits. If workers are still exposed this needs to be prevented by using personal protective equipment. In this case, the workers have to be trained in the appropriate use of personal protective equipment