Figure 4

QCM quantified whole smoke particle deposition in the Vitrocell module at various airflow (L/min) and vacuum (ml/min/well) rates. [A] A multi-vari chart showing deposition within the dose range of diluting airflows 0.5-4.0 L/min and at vacuum rates of 5–100 ml/min/well through the module (mean of 4 QCM positions per airflow). [B] A multi-vari chart showing the regional deposition across the module (separated by vacuum). The 4 connected black dots represent QCM positions 1–4, left to right (Figure 2A). Asterisks indicate statistically significant differences in deposition across/between module positions 1–4 as determined by one-way ANOVA: * denotes a statistically significant difference between positions, p = 0.05-0.01, ** denotes a statistically significant difference between positions, p = <0.01. For 5 ml/min/well vacuum, data sets were n = 5/QCM position/airflow; for 10, 50 and 100 ml/min/well vacuum, data sets were all n = 3/QCM position/airflow. For both charts, red diamonds indicate the mean deposited particle mass for all 4 airflows tested at each vacuum rate.