What do face shields primarily protect against?

Face shields are primarily designed to protect the face and eyes from splashes, drops, and liquids, making them essential personal protective equipment (PPE) in various settings, especially in healthcare and laboratories. Their construction allows for a clear view while providing a barrier against potentially hazardous materials that could cause injury or contamination.

The design of a face shield covers a large portion of the face, which is particularly important during tasks that involve handling chemicals or biological agents. This capability is crucial for preventing splashes that could lead to serious injuries or exposure to harmful substances.

In contrast, the other options do not accurately describe the primary function of face shields. For example, while face shields can offer limited protection from solar radiation, they are not specifically designed for that purpose. Similarly, they do not provide adequate protection against sharp objects or radiation exposure, as their design is not meant to withstand the penetrating force of sharp tools or to shield from ionizing radiation effectively. Thus, the emphasis of face shields being primarily protective against splashes, drops, and liquids stands out as their most critical function.