Even though you can bring an e-cigarette on board, using it during the flight is strictly prohibited
Asia Pacific Cigarette Market Size and Forecast, by Country (2024-2032) 8.3.1
Blended flavors with fruit or cooling flavor descriptions were the most popular, including Iced Mango (30.2%), Banana Ice (26.4%), Lush Ice (23.8%), and Melon Ice (22.9%)
He also penned a manuscript in 1987 that started with this claim: During the last decade and especially in the last few years scientific evidence has been gradually emerging, and now indicates that smoking may in fact provide a net contribution in the prevention of certain diseases and in extending life expectancy. After reviewing the manuscript, another paid consultant, Peter Lee, wrote a confidential letter to a corporate officer at British-American Tobacco, saying, I think the paper is pretty valueless, partly as it is completely unbalanced, partly as the (many) wild claims made are not substantiated by detailed evidence. A critique by a BAT attorney suggests that the company closely monitored the work of its consultants: It obviously needs to be honed into a first-class scientific paper
