Flavored Vapes MOST Policy Initiative State law to combat 'pervasive' teen vaping will supersede Edmond program 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. How Old do You Have to be to Vape? VaporFi How Old Do You Have to Be to Vape? Complete Guide How Old Do You Have To Be To Buy A Vape (Age Restrictions & State Laws)