Biohazard Symbol - Universal Warning Sign for Biological Hazards #1475247 (License: Personal Use)

This high-contrast black-and-white biohazard symbol features three interlocking circles surrounding a central dot, designed for maximum visibility and instant recognition. Created in 1966 by Charles Baldwin, it conveys danger from biological agents without relying on language or culture-specific cues. It is standardized by ISO 3864-3 and widely used in medical, research, and waste-handling contexts.

Used on containers, lab doors, safety signage, and PPE to alert personnel to biological hazards such as pathogens, bloodborne agents, or contaminated waste; matches user intent for safety compliance, hazard identification, or educational reference.