A truly iconic symbol of everything from the fright of the Cold War to the fantasy of videogames. The biohazard symbol actually signifies the presence of biological substances that pose a threat to the health of living organisms, which is certainly why you've seen it so many times in so many places. Danger, danger! We made this as a classic, vintage print in appreciation of its long, historic meaning. It's available here in your choice of several colors, printed with eco-friendly inks.