What is one of the common tools for gaining access to a building during a fire?

A hydraulic rescue tool, often referred to as the "Jaws of Life," is commonly used by firefighters to gain access to buildings and vehicles during emergencies. It operates using hydraulic pressure to exert tremendous force, allowing firefighters to pry open doors, windows, or even break through walls, thus enabling entry into a structure that may otherwise be inaccessible. This tool is particularly valuable in scenarios where quick access is paramount, such as when individuals are trapped inside.

The other tools listed serve different primary functions. A fire extinguisher is used to put out small fires; a thermal imaging camera helps locate heat sources or victims in smoke-filled rooms rather than gaining direct access; and a hose reel is primarily utilized for deploying water to fight fires rather than for accessing buildings. Hence, the hydraulic rescue tool stands out as essential for gaining physical entry in emergency situations.