Denver leaders call flavored nicotine ban vote a "significant step," and vape shops in Aurora react CBS Colorado Denver Tobacco & Vape Ban About Smokers Island Smoker's Island Vape Shop In what is being called one of the city's most expensive races on this year's ballot, Denver voters are leaning heavily toward keeping the city's ban on the sale of flavored tobacco, Denver ban on flavored nicotine products goes into effect as the new year kicks off