Application: A smoke exhaust fire nozzle/gun likely refers to a specialized firefighting tool used for both suppressing fire and ventilating smoke. It is designed to rapidly and effectively clear dense smoke and hazardous gases from fire scenes, creating a safe environment for firefighters and trapped individuals. It plays a vital role in firefighting operations, particularly in warehouses, commercial buildings, large-scale structures, floors and basements, subways, underground malls, and tunnels. This equipment enables swift response to smoke dispersion, reduces fire damage, and secures critical time for rescue efforts.