Study shows vapes emit more lead than 20 packs of cigarettes yes, *20.* New research has uncovered a disturbing truth about popular disposable vapes: they may be more toxic than A ban on disposable vapes could have unexpected effects on how some young adults use nicotine. The new study, published in PLOS Global Public Health, explored how regular disposable vape users aged 5 Vaping Facts You Need to Know Johns Hopkins Medicine Is vaping worse for oral health than smoking? Dentistry in Turkey Vaping: Safer than cigarettes or a new health crisis? Turns out the disposable nicotine delivery systems are, as suspected, worse than the real thing, according to a new study from researchers at UC Davis.