Why should firefighters make sure their PPE is dry before engaging in structural firefighting?

Firefighters must ensure their Personal Protective Equipment (PPE) is dry before engaging in structural firefighting primarily because water trapped in the fabric can boil and cause steam burns in fire conditions. When firefighters are exposed to high heat environments, any moisture that is present in the layers of their protective gear can rapidly turn to steam. This steam creates pressure against the skin and poses a significant risk of burns, which can be more severe than burns caused by direct flame exposure.

Firefighting gear is designed to provide thermal protection, but when wet, its effectiveness can be compromised due to the dangerous steam generation. Properly dry PPE minimizes the risk of burns caused by that steam, allowing firefighters to perform their duties safely and effectively. Ensuring that gear is dry before entering a hazardous environment is a critical safety measure in both preventing injuries and maintaining operational readiness during firefighting activities.