Tobacco 21 Wisconsin Department of Health Services Are Vapes Banned In Wisconsin Stock Up While You Can. As Of Sept 1st You Can No Longer Buy Flavored Vapes In Wisconsin. Limited Supply Is Wisconsin Banning Vapes Australia Behind Wisconsin's Vape Ban: Lobbying, lawsuits, and lost sales Wisconsin News wxow.com Federal government has raised legal age to buy tobacco and vape products to 21, but Wisconsin's laws don't allow police departments to enforce the change : r wisconsin WisconsinNews: On Sept. 1 a new Wisconsin law went into effect placing a ban on all vape products not approved by the FDA, which limits the state's vape selection to 39 products.