Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Hidden dangers: Toxic metals found in popular disposable vapes SEATCA New study finds disposable vaping devices more toxic than traditional cigarettes How does the disposable vape ban work, and how harmful is vaping? Disposable vapes might look harmless with their fun colors and sweet flavors, but scientists have just uncovered a disturbing truth: these devices can pack a toxic punch even stronger than regular cigarettes.