Of course, this is the same thing as stating that cigarette smoking may be no worse than vaping in terms of its effects on pulmonary function.

Something that all E-Cig users should take note of is the higher the voltage (wattage as well) being used increases the chemicals being released. So the more advanced users that have high wattage devices should take this into consideration especially with using a higher PG blend of E-Juice. Although with lower wattages these chemicals being released is still much lower than that of regular cigarettes, by several folds in fact. But with higher wattages and using a high PG blend, your E-Cigs are releasing just as much as regular tobacco cigarettes. This makes second hand vapor more dangerous than previously assumed.

In the paper, the authors ackowledge that:

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