Biohazard Symbol - Universal Warning Sign for Biological Hazards #308862 (License: Personal Use)

This image displays the internationally recognized biohazard symbol: a black trefoil (three interlocking circles) on a bright yellow background, enclosed in a black circle. Designed in 1966 by Charles Baldwin, it conveys immediate visual alertness for biological dangers such as pathogens, medical waste, or contaminated substances. Its high-contrast color scheme ensures visibility and compliance with OSHA and ANSI safety standards.

Used on lab doors, medical waste containers, protective equipment, and safety signage to alert personnel and the public to biological hazards; matches user intent for hazard identification, safety training, or regulatory compliance resources.