Which symbol indicates a health hazard?

The health hazard symbol is specifically designed to represent potential health risks associated with certain substances. This symbol features a silhouette of a person with an exclamation mark inside a diamond shape, which alerts individuals that exposure to the material could lead to serious health concerns such as respiratory issues, reproductive hazards, or organ toxicity.

In contrast, the other symbols convey different types of hazards: the exclamation point indicates a general health hazard or irritant, the flame represents a fire hazard or flammable substance, and the skull and crossbones signifies acute toxicity or lethal effects from exposure. Each of these symbols identifies specific risks, but the health hazard symbol distinctly focuses on long-term or chronic health effects, making it the appropriate choice for indicating health-related dangers.