If a flight attendant or crew member catches a passenger using an e-cig, that passenger is subject to the same laws that cover smoking cigarettes on board
Nicotine, Tobacco, Hemp, & THC FREE TO QUIT SMOKING IS HARD, YET POSSIBLE WITH HONEYROSE
When e-cigarette companies first hit the market, many consumers reacted with a sort of tobacco whiplash: a fear that this emerging product was somehow complicit in an entirely new set of lies and advertising schemes
Department of Health and Human Services, Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2004 1 2 Cigarette Smoking Among Adults and Trends in Smoking Cessation United States, 2008 "Annual Smoking-Attributable Mortality, Years of Potential Life Lost, and Economic Costs United States, 19951999"
[6] State Excise Tax Rates for Non-Cigarette Tobacco Products. Campaign for Tobacco-Free Kids
Notably, most never-smokers are diagnosed with non-small-cell lung cancer (NSCLC), while SCLC is very much considered a smokers type of lung cancer