In firefighting, what does "ventilation" mean?

Ventilation in firefighting primarily refers to the process of removing smoke and heat from a structure during a fire. This is critical for several reasons: it improves visibility for firefighters who are operating inside the structure, reduces the potential for flashover by lowering temperatures, and helps to create a safer environment for both occupants and responders. Effective ventilation techniques, such as opening windows or using specialized ventilating equipment, allow for hazardous conditions to be alleviated, which can ultimately lead to better outcomes in fire suppression efforts and enhancing safety.

While the introduction of fresh air to displace smoke is also an important element of ventilation, the key focus in firefighting is often on the removal of smoke and heat itself. This proactive management of smoke and hot gases is done to ensure that conditions are made safer for rescue operations and firefighting efforts.