Here's How Old You Have To Be To Vape In The UK Vapor Shop Direct How Old Do You Have To Be To Buy Vapes in Ireland? Did you know that the legal age to purchase and use vaping products in the United States is 21 years of age? For more information about youth nicotine use visit https: med.stanford.edu halpern felsher reach lab parent corner.html How Old do you Have to be to Buy a Vape? New York law raising age to buy tobacco, vapes goes into effect