Biohazard Symbol - Universal Warning Sign for Biological Hazards #3821447 (License: Personal Use)

The image displays the standard biohazard warning symbol-a black trefoil (three interlocked circles) centered within a yellow equilateral triangle bordered in black. Designed in 1966 by Charles Baldwin at Dow Chemical, it was created to be instantly recognizable regardless of language or literacy level. It is used globally to mark containers, labs, equipment, or areas containing infectious agents, medical waste, or other biological risks.

This image is commonly used on safety signage, educational materials, laboratory websites, OSHA compliance guides, and public health communications. It serves users seeking hazard identification, workplace safety training, or regulatory information about handling biological threats.