How Old Do You Have To Be To Buy A Vape (Age Restrictions & State Laws) Why Youth Vape Smoking and Tobacco Use CDC Did you know? The Tobacco 21 law raises the legal age to buy tobacco and vaping products from 18 to 21. Why? To help protect young people from a lifetime of addiction. States Slow to Enforce Age 21 Law on Selling Tobacco, Vape Items Bloomberg Government At What Age Can I Buy A Vape You Must Be 21 Years of Age or Older to Purchase E Cigs Vape Sign signs by salagraphics