Biohazard Symbol - Official Warning Sign for Biological Hazards #1688811 (License: Personal Use)

This image displays the standard biohazard symbol-a black trefoil design on a vivid red background-paired with the word “BIOHAZARD” in bold uppercase letters. Developed by Charles Baldwin in 1966, the symbol is universally adopted to indicate the presence of potentially infectious biological materials, including pathogens, toxins, and contaminated waste. It is mandated in laboratories, hospitals, and transport containers under OSHA, CDC, and WHO guidelines.

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