Reality of what's inside vapes you're literally sucking on a battery Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis There are no safe tobacco products, and yes, that includes vapes. The sleek, battery powered devices heat up liquid packed with nicotine and other harmful chemicals that turn into an aerosol you inhale Young vaper's shocking warning after she coughs up blood from 'battery acid' Hull Live Most young people know inhaling something from a little plastic device and taking that into your lungs is not a healthy thing to do! We're learning more and more about the health If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.