Fume transports in a high rise industrial welding hall with displacement ventilation system and individual ventilation units

► Displacement ventilation can remove airborne pollutants from the hall. ► Thermal stratification alleviates thermal and pollutant loads. ► Air supplying from Individual units hardly change the hall flow structures. ► Pollutant concentrations decrease with the elevation of supplying air pipes. ► Field thermal measurements demonstrated the numerical investigations.