What is one additional use for a fog stream besides putting water on a fire?

A fog stream serves multiple purposes in firefighting, one of which is to aid in exhausting smoke and gases through hydraulic ventilation. When a fog stream is directed towards the upper part of a smoke-filled area, the water droplets create a fine mist that acts as a barrier, helping to push out smoke and toxic gases. As the fog displaces the hot, contaminated air, it allows for improved visibility and air quality for both firefighters and potential victims. This method effectively reduces the heat and smoke in a structure, making it safer for firefighters to operate and facilitating search and rescue efforts.

While there may be other potential uses for a fog stream, such as cooling exposure or reducing heat levels, the operational advantage of utilizing it for ventilation is particularly notable in enhancing safety and efficiency during firefighting operations.