Vape Age Laws: Minimum Age to Buy Vapes in the U.S. & Online How Old Do You Have To Be To Buy Vapes in Ireland? 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 How Old Do You Have to be to Vape? Age Limits in Various Countries Did you know? In New York State, the legal age to buy or possess vape products is 21 not 18. That includes: E cigarettes Nicotine vape liquids Tobacco vape products Cannabis vape products