Numerical simulation on suppression effect of pollutants by personalized ventilation in tollbooths

In view of the serious pollution and the poor air quality in the tollbooth, suggests using personalized ventilation system to improve the working environment. Taking NO2 as a representation of pollutants, simulates and analyses the concentration of NO₂ in the tollbooth and at the window under different air-supply directions or air-supply volumes with Airpak software, and gives the relationships between air-supply direction or air-supply volume and concentration of NO₂.