Figure 2 | Scientific Reports

Figure 2

From: Room air constituent concentrations from use of electronic nicotine delivery systems and cigarettes using different ventilation conditions

Figure 2

Comparison of the particle number concentration measured from prescribed product use in Groups I (blue line) and II (green line) in each ventilation condition (A = residential; B = Office; C = Hospitality). Note that for Group II in the residential ventilation condition there was no particle number concentration due incorrect device setup.

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