Legal Age to Vape: US State Laws You Need to Know 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 The FDA Regulations say the minimum age to sell tobacco and vaping products is 18, but it may be different for your store. We Card The minimum age to purchase tobacco and vape products is going up. Will it keep kids from using them? How Old Do You Have to Be to Vape? How Old Do You Have to be to Vape? Age Limits in Various Countries