Quantification of Free Radicals from Vaping Electronic Cigarettes Containing Nicotine Salt Solutions with Different Organic Acid Types and Concentrations Chemical Research in Toxicology Testing has revealed what we already knew illegal vapes are filled with dangerous levels of addictive nicotine and laced with chemicals including formaldehyde and antifreeze components. The Chemistry of Vaping ChemistryViews Vapor Hiding Dangerous Ingredients: E Cigarette Concoctions Are Far from Safe American Lung Association