Biohazard Symbol - Meaning, Usage, and Safety Significance #1688906 (License: Personal Use)

This iconic trefoil-shaped symbol, created in 1966 by Charles Baldwin at the U.S. Centers for Disease Control, features three interlocking arcs radiating from a central circle to convey danger without language dependence. It is used globally on containers, lab doors, and medical waste to alert personnel to pathogens, recombinant DNA, or infectious materials. Its high-contrast black-on-white design ensures visibility and immediate recognition in emergency or clinical settings.

Used on hazardous material signage, laboratory equipment, medical waste bins, and safety manuals; matches user intent for understanding hazard symbols, OSHA compliance, biosafety training, or emergency response protocols.