Biohazard Symbol - Official Warning Sign for Biological Hazards #1936569 (License: Personal Use)

This iconic black-and-white symbol, designed in 1966 by Charles Baldwin, features three interlocking circles radiating from a central point to signify biological hazards such as viruses, bacteria, or medical waste. It is standardized by ISO 3864-3 and OSHA for use on containers, equipment, and facilities handling infectious materials. Its high-contrast design ensures immediate recognition even under poor lighting or at a distance.

Used on lab doors, sharps containers, PPE packaging, and hazardous waste labels; targets professionals in healthcare, research, and public safety seeking hazard identification and regulatory compliance guidance.