Are Flavored Vapes Banned in Your U.S. State? Check the Latest List D.C. bills would block e cigarette sales without a prescription, ban flavored products The Washington Post If the bill is signed, Washington will become the second state to ban the sale of nitrous oxide, which has grown in popularity and misuse. WA lawmakers consider flavored tobacco ban The Seattle Times Washington bill looks to ban flavored vapes, tobacco products Are Flavored Vapes Banned in Your U.S. State? Check the Latest List