Biohazard Symbol - Universal Warning Sign for Biological Hazards #3735078 (License: Personal Use)

This bright lime-green biohazard symbol consists of three interlocking circles with a central dot, forming a trefoil shape that is instantly recognizable worldwide. Created by Charles Baldwin at Dow Chemical in 1966, it was intentionally designed to be distinct from any existing symbols to ensure clear communication of danger without language barriers. It is used on containers, equipment, signage, and protective gear in laboratories, medical facilities, and waste disposal sites dealing with pathogens or genetically modified organisms.

Commonly used in scientific, medical, and industrial contexts to denote biological hazards such as viruses, bacteria, bloodborne pathogens, or recombinant DNA. Users searching for this image typically seek safety compliance resources, educational material, or graphic assets for hazard labeling.