Another Gross Reason to Put Down the E Cigarettes American Lung Association 5 Vaping Facts You Need to Know Johns Hopkins Medicine E cigarettes: Facts, stats and regulations How to Use a Vape Pen: The Beginner's Guide Does vaping (using e cigarettes) make a difference to our health and are there harms with second hand vaping? iHealth Facts While vaping is not risk free, it is less harmful than tobacco Our World in Data