Effectiveness of an intervention program to develop e cigarette control leaders at the University in Lampang Province, Thailand PDF) Personal and perceptual factors associated with the use of electronic cigarettes among university students in northern Thailand No, vaping and vapes are not illegal in Thailand. Here's why. WSR Law Group Thailand's 9 reasons for banning e cigarettes Thai police clarify that using e cigarettes in Thailand is not illegal, but selling and distributing them remains banned.