Traveler’s coming to Thailand should be aware that electronic cigarettes (e-cigarettes or ‘vaping’) as well as shisha smoking and electronic shishas, are all illegal in the Kingdom.”
There have been recent incidents of foreign traveler’s who were unaware of the ban facing an on-the-spot fine or being arrested. The ban was introduced in 2014 by the Thai Government for health reasons and that electronic cigarettes and shishas were luring young people into smoking.
Thus, traveler’s coming to Thailand are advised not to bring any electronic cigarettes or electronic shishas with them, nor any item or equipment associated with e-cigarettes including the ‘juice’ used in the device.
Just because you might see Thai people vaping, understand they are breaking the law as well.