Summary
The study found that secondhand vapor (SHV) from electronic nicotine delivery systems (ENDS) contains significantly lower concentrations of most constituents compared to secondhand smoke (SHS) from cigarettes (CC). The only exception was glycerol, for which the difference between smoking and blank runs was not statistically significant. Emission factors between different ENDS products were similar, with the exception of propylene glycol. The study suggests that SHV from ENDS differs qualitatively and quantitatively from SHS from CC and does not contribute appreciably to indoor air quality. These findings are based on controlled laboratory conditions and do not represent ad libitum ENDS use.
Citation
Caraway JW, Jin T, Schmidt E, Nelson PR. A Single-Center Evaluation of Environmental Emissions from ENDS and Combustible Cigarettes. Contrib Tob Nicotine Res. 2021;30:3-24. doi:10.2478/cttr-2021-0002
