What is the Biohazard Symbol?

The biohazard symbol (☣) is a universal warning sign that indicates the presence of biological substances that pose a threat to living organisms or the environment. This distinctive trefoil design consists of three interlocking circles surrounding a central point, creating an instantly recognizable pattern that transcends language barriers.

The biohazard symbol meaning specifically warns of infectious agents, contaminated materials, medical waste, and any biological material that could cause harm to humans, animals, or the environment.

Created in 1966 by Charles Baldwin at Dow Chemical Company, the biohazard symbol origin stems from the need for a standardized warning system in laboratories and medical facilities. The universal biohazard symbol was specifically designed to be memorable, balanced, universal, and distinctive.