Denver's city clerk says enough signatures were gathered to send repeal of tobacco flavor ban to voters Proposed bill to ban flavored tobacco Denver's Flavored Tobacco Ban: Stock Up Before It's Too Late Vaping Land Colorado is set to ban vaping where smoking is already prohibited, following more than a dozen other states : r Denver 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)