D.C. bills would block e cigarette sales without a prescription, ban flavored products The Washington Post Are Flavored Vapes Banned in Your U.S. State? Check the Latest List Laws restrict U.S. shipping of vape products. Many companies do it anyway. The Washington Post Washington State Bans Flavored Vape Products, What you need to know 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. Washington bill looks to ban flavored vapes, tobacco products