Public health experts hopeful Denver's flavored tobacco ban will discourage young people from using MSU Denver RED Flavored e cigarettes maybe banned in Colorado 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 Flavored tobacco banned in California as Prop. 31 passes Los Angeles Times Denver ban on flavored nicotine products goes into effect with new year