Biohazard Symbol - Official Warning Sign for Biological Hazards #1688960 (License: Personal Use)

This iconic black-and-white symbol consists of three interlocking circles with a central dot, forming a trefoil shape designed for high visibility and instant recognition. Created in 1966 by Charles Baldwin, it is used to label containers, equipment, and areas contaminated with biological agents such as viruses, bacteria, or medical waste. Its design ensures legibility from multiple angles and under varied lighting conditions.

Used on lab doors, medical waste bins, protective gear, and safety documentation; supports user intent for hazard identification, regulatory compliance (OSHA, CDC), and emergency response training.