Campaign urges Denver voters to uphold city's flavored tobacco ban Denver's flavored vape ban sends customers across city lines Flavored nicotine bans spread as Denver prohibition faces repeal Complete Colorado Amendment 310 would ban flavored vapes in Denver, and it's stirring up a lot of debate. Some say it's about protecting youth, others argue it's government overreach. What do you think? A group of vape shop owners is backing a newly filed lawsuit challenging Denver's ban on flavored tobacco products, arguing the ordinance is unconstitutional and unfairly targets their industry. (KDVR)