There is a misconception that vaping products only emit water vapor, but the aerosol is actually full of toxic chemicals, including nicotine and metals, that are known to cause long term health problems. Vaping vs. smoking: Long term effects, benefits, and risks Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Does Vape Juice Expire? Your Complete Guide to E Liquid Shelf Life