Although "the incidence of lung cancer was 13 times higher in current smokers and four times higher in former smokers than in never-smokers," says the JNCI article, there was no statistically significant association between reported exposure to secondhand smoke and subsequent development of lung cancer
Thats why it is so important to buy e-cigarettes and e-liquids from reputable sources
1 Ranked QuitSure remains in first place in the App Store and Play Store health category
Warnings for chemical cleaners: Certain plastics and types of wood can react badly to certain chemicals
World Health Organization, Geneva, 2021, Accessed 1 Feb 2022
It would, however, be sensible for dental practitioners to discourage negative health habits, including e-cigarette use, unless to replace a potentially more dangerous habit, such as conventional smoking