Biohazard Symbol - Universal Warning Sign for Biological Hazards #228676 (License: Personal Use)

This high-contrast black-and-white symbol features three interlocking circles surrounding a central dot, forming a symmetrical, rotationally invariant design. Created in 1966 by Charles Baldwin at Dow Chemical, it was engineered to be unmistakable even when viewed upside down or from a distance. It is universally used to label biological agents, medical waste, and contaminated equipment.

Used on signage, lab equipment, bio-waste containers, and safety manuals to alert personnel to potential exposure to infectious substances; matches user intent for hazard identification, safety training, or regulatory compliance resources.