A fire engine responds to both medical and fire calls. The engine carries water and hose for fighting fires. It is also like a big toolbox used on all scenes. Some tools are for accessing water, such as spanner wrenches and hydrant wrenches. Other tools are pike poles (for pulling ceilings), axes, saws, and hand tools. Each engine has air packs called Self Contained Breathing Apparatus (SCBA), which allow firefighters to breath clean air inside a fire. The engine also carries medical equipment.