Biohazard Symbol | Universal Warning Sign for Biological Hazards #1475244 (License: Personal Use)

This high-contrast black-and-white biohazard symbol features three interlocking arcs radiating from a central circle, forming a trefoil shape that signals the presence of biological substances posing a threat to human health. Created in 1966 by Charles Baldwin at Dow Chemical, it was engineered for maximum visibility and cross-cultural comprehension, with no reliance on language or color perception. Today, it appears on lab equipment, medical waste containers, and biosafety signage globally.

Used on safety signage, lab documentation, medical waste labels, and hazard communication materials; matches user intent for understanding hazard symbols, safety compliance, or educational content about biosafety protocols.