Which firefighting tool is primarily used for ventilation?

The chain saw is primarily used for ventilation due to its effectiveness in quickly cutting through various materials like roofing and walls to create openings. In firefighting, creating ventilation holes allows smoke, heat, and gases to escape from a burning structure, which can help improve visibility and conditions for firefighting operations. The ability to efficiently and swiftly remove sections of roofs or walls makes the chain saw an essential tool during active firefighting efforts.

While other tools like the axe, Halligan tool, and sledgehammer serve important purposes in firefighting operations—such as forcible entry, demolition, or breaking through barriers—they lack the specific capabilities of a chain saw when it comes to the precise and quick removal of materials necessary for effective ventilation in fire scenarios.