Name Icon Unicode
Biohazard ☣️ U+2623
Warning ⚠️ U+26A0
Radiation ☢️ U+2622
Skull and Crossbones ☠️ U+2620
Medical Symbol ⚕️ U+2695
Hospital 🏥 U+1F3E5
Petri Dish 🧫 U+1F9EB
DNA 🧬 U+1F9EC
Non-Potable Water 🚱 U+1F6B1