Biohazard Symbol - Universal Warning Sign for Biological Hazards #1941580 (License: Personal Use)

This high-contrast black-on-yellow biohazard symbol was developed in 1966 by Charles Baldwin to clearly signal biological hazards such as infectious agents, medical waste, or contaminated materials. Its symmetrical, abstract design ensures visibility and comprehension across languages and literacy levels, making it indispensable in healthcare, research, and industrial safety contexts. The symbol is standardized by ISO 3864-3 and OSHA for use on containers, doors, and signage where biological risks exist.

Used on lab equipment, medical waste bins, containment zones, and safety documentation; matches user intent for hazard identification, safety training, regulatory compliance, or educational resources about biosafety.