id author title date pages extension mime words sentences flesch summary cache txt cord-339540-qvub5v2e Chen, Chun A simple method for differentiating direct and indirect exposure to exhaled contaminants in mechanically ventilated rooms 2018-03-17 .txt text/plain 7064 391 49 After analyzing the data, a simple method was developed to differentiate direct and indirect exposure in mixing and displacement ventilated rooms. Therefore, we used the local air velocity (U) at the center of the target person's breathing zone calculated by the model above as an indicator to differentiate the direct and indirect exposure to exhaled contaminants. Therefore, the threshold local air velocity was set at 0.05 m/s in the method for differentiating the direct and indirect exposure to exhaled contaminants in mixing ventilated rooms. The proposed method was used to differentiate the direct and indirect exposure to exhaled contaminants for the 133 mixing ventilation cases. Therefore, the threshold local air velocity was set at 0.07 m/s in the method for differentiating the direct and indirect exposure to exhaled contaminants in displacement ventilated rooms. (3) The proposed method can reasonably differentiate direct and indirect exposure to exhaled contaminants in both mixing and displacement ventilated rooms. ./cache/cord-339540-qvub5v2e.txt ./txt/cord-339540-qvub5v2e.txt