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) Will you vote to repeal a ban on flavored tobacco in Denver?, Referendum 310 is on your ballot this year. If a majority of voters vote yes the city will continue to ban flavored tobacco products. If Colorado is set to ban vaping where smoking is already prohibited, following more than a dozen other states : r Denver Denver Voters Support Flavored Vape and Tobacco Ban Vaping360 Colorado Flavored Vape Ban Voted Down in Big Loss for Prohibitionists