Which type of equipment is essential for firefighters during an aircraft emergency?

In an aircraft emergency, the use of Personal Protective Equipment (PPE) is essential for firefighters to ensure their safety while responding to hazardous situations. PPE includes items such as helmets, gloves, fire-resistant clothing, respiratory protection, and eye protection. These components are critical because firefighters are often exposed to dangerous environments, including extreme heat, smoke, and toxic substances found in airplane fuels and materials.

Wearing appropriate PPE allows firefighters to perform their duties effectively while minimizing the risk of injury or health problems caused by fire, smoke inhalation, and exposure to hazardous materials. Without proper PPE, firefighters would be significantly more vulnerable during their operations, so it's a fundamental requirement in responding to aircraft emergencies.