Biohazard Symbol - Universal Warning Sign for Biological Hazards #1475263 (License: Personal Use)

This stark black-and-white biohazard symbol features three interlocking arcs radiating from a central circle, forming a trefoil shape. Created in 1966 by Charles Baldwin at Dow Chemical, it was engineered for maximum visibility and universality, regardless of language or literacy. It is used globally to label infectious agents, medical waste, and contaminated equipment.

Used on lab doors, waste containers, protective gear, and safety documentation; this image serves educational, regulatory, and compliance purposes for health, science, and emergency response audiences.