What should firefighters do when entering a structure that has a potential gas leak?

When firefighters are entering a structure with a potential gas leak, it is crucial to consider safety and the best practices for dealing with hazardous situations. Ventilating the area immediately helps disperse any accumulated gas, thereby reducing the risk of an explosion or fire, as flammable gas can accumulate in enclosed spaces.

Using flashlights to search the area is essential because it allows firefighters to navigate safely in low visibility conditions, which is common when dealing with smoke or when the power is out. Proper illumination can help them avoid obstacles and locate victims or hazards more efficiently.

Ensuring the use of proper breathing apparatus is vital as it provides protection against inhalation of toxic gases that may be present. Firefighters must have the right protective equipment to safeguard their respiratory systems in potentially harmful environments.

The combination of these actions—ventilation to clear the gas, proper lighting for visibility, and the right respiratory protection—ensures a comprehensive approach to safely addressing a gas leak. Therefore, selecting the option that includes all of these actions reflects the recommended protocol for handling such dangerous situations in firefighting.