In the United States, the legal age to vape is 21. This is due to a federal law enacted on December 20, 2019, which raised the federal minimum legal sales age for all tobacco products, including e-cigarettes, from 18 to 21 across the country. However, its important to note that some states have set the minimum age at 18 or 19, while others have set it at 21. Its also worth mentioning that some states have passed comprehensive smoke-free indoor air laws that include e-cigarettes, which prohibit smoking and the use of e-cigarettes in indoor areas of private worksites, restaurants, and bars. If youre unsure about the vaping laws in your state, its best to check with local authorities for the most up-to-date information.