San Francisco to ban sale of Juuls, other e cigarettes Teens Are Exploiting a Stupid Loophole in Flavored Vape Ban The evidence is clear that bans on flavored vapes produce unintended consequences, including increased cigarette use among adults and teens who might have otherwise switched to less harmful alternatives, Cato's Dr. Jeffrey Repeal of Denver's controversial flavored tobacco product ban will go to voters CBS Colorado Juul Ban City, State Bans on Juul & Other Vaping Products Fed ban on flavored vapes imminent, menthol and vape stores may be spared