Biohazard Symbol - Universal Warning Sign for Biological Hazards #1967297 (License: Personal Use)

This high-contrast black-on-yellow symbol consists of three interlocking crescent shapes radiating from a central circle, designed for maximum visibility and instant recognition. Created in 1966 by Charles Baldwin at the U.S. Centers for Disease Control, it conveys danger from biological agents like viruses, bacteria, or toxins without relying on language. It is standardized under ISO 3864-3 and used globally on containers, lab doors, and medical waste signage.

Used on safety signage, laboratory equipment, medical waste containers, and PPE packaging; targets professionals in healthcare, research, emergency response, and industrial safety who need immediate hazard recognition.