Figure 1.

Impact of coil power and temperature on size distribution of particles emitted by an e‐cigarette. Size distribution and size intervals of particles emitted by an e‐cigarette under (A) a power‐controlled setting with a 0.5 Ω coil, (B) a power‐controlled setting with a 1.5 Ω coil, and (C) a temperature‐controlled setting with a 0.5 Ω coil. In all cases, a 50% PG/50% Gly e‐liquid ratio was used, with no nicotine or flavors. Mean (hard line) of three replicates per condition ± standard error mean (shade). For each replicate, particle diameter frequencies were normalized to the total number of particles analyzed.