India bans e cigarettes over youth vaping fears CNN ABC Asia Hong Kong has banned smoking within 3 metres of building entrances exits and while queuing for public transport or other places. The ban Instagram In a major crackdown, China banned the sale of flavoured e cigarettes across the country. The ban is an attempt by the Chinese government to keep underage vaping in check which had been Perceptions of and responses of young adults who use e cigarettes to flavour bans in China: a qualitative study