Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years. FDA move on flavored vapes sparks concern on toxicity, teen vaping How does the disposable vape ban work, and how harmful is vaping? E Cigarettes and Vaping OHSU Are Disposable Vapes Safe? EDGE Vaping Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.