Which tool can be used for both forcible entry and ventilation?

The Hux bar is an effective tool for both forcible entry and ventilation, making it particularly versatile in firefighting operations. Its design allows firefighters to apply leverage effectively, which is crucial when needing to break through locked doors or other barriers for forcible entry. This leverage can also be utilized in ventilation efforts, as the Hux bar can assist in prying open windows or hatches to allow smoke and heat to escape from a structure, aiding in the overall efficiency of fire control.

The other tools mentioned do have specific functions; for instance, the San Francisco hook is primarily used for ventilation and to pull down ceilings but does not have the same forcible entry capabilities. The K tool is designed specifically for removing padlocks, while the Kelly tool is versatile but more focused on forcible entry tasks. The Hux bar's dual functionality makes it distinct and valuable in both of these crucial firefighting operations.