Biohazard Symbol - Standard Warning Sign for Biological Hazards #3735081 (License: Personal Use)

The biohazard symbol features a black trefoil (three-lobed) shape centered on a bright yellow circle, designed for high visibility and instant recognition. It was developed in 1966 by Charles Baldwin and is standardized under ISO 3864-3 for use in laboratories, healthcare settings, and waste disposal operations. The symbol conveys no specific language, making it universally understood across cultures and regulatory frameworks.

Commonly used on containers, doors, equipment, and signage in medical, research, and industrial environments where biological agents pose risk. Matches user intent for safety compliance, hazard identification, educational resources, or regulatory documentation.