Which type of PPE (personal protective equipment) is critical during biological threats?

Masks and gloves are critical types of personal protective equipment (PPE) during biological threats because they are designed to prevent exposure to infectious agents and harmful biological materials. Masks, particularly those rated for filtration like N95 respirators, help protect the respiratory system from inhaling airborne pathogens and contaminants that could be present in the environment during a biological incident. Gloves serve to create a barrier between the skin and potentially contaminated surfaces or materials, minimizing the risk of transmission of infections through direct contact.

In contrast, the other options do not provide the necessary protection against biological threats. Goggles and helmets are more relevant to protecting from physical injuries or certain chemical exposures, steel-toed boots are focused on foot protection in hazardous environments but do not address biological contamination, and fire-resistant suits are designed to shield individuals from heat and flames rather than biological hazards. Thus, masks and gloves are specifically tailored to safeguard against the risks associated with biological threats.