How Long Does Vape Smoke Stay in the Air? Guide The risks of vaping near babies and children are often underestimated, but they are very real. E cigarette vapour can affect developing lungs, increase the risk of respiratory problems and compromise overall Thirdhand smoke' may last longer than you think, damage your health Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.