You debated the fact that they aren't harmful in any way, and from the studies done that you told me to go look up, you have proved yourself incorrect. I enjoy
vaping and plan to stand behind it as a great alternative for smoking.
A group of scientists from the United States, Poland and UK set out to evaluate the chemical nature of electronic cigarette vapor, concentrating on four groups of potentially toxic and carcinogenic compounds: carbonyls, volatile organic compounds, nitrosamines and heavy metals. Before we dive deeper into the details of this research, its worth noting that this was an independent study funded by Polands Ministry of Science and Higher Education and the National Institutes of Health, which adds credibility and objectivity.
To test chemical levels in exhaled vapor, researchers used 12 different brands of electronic cigarettes, and a medical nicotine inhaler as reference product. Testing was done in controlled conditions using a modified smoking machine, and the toxic compounds were extracted from vapors into a solid or liquid phase and analysed with chromatographic and spectroscopy methods. Test results showed levels of selected toxic compounds found in tobacco cigarette smoke were between 9 and 450 times higher that the levels found in e-cig vapor. Quantities of acrolein, a known oxidant and respiratory irritant believed to also contribute to various cardiovascular conditions associated with smoking, were found to be 15 times lower in e-cigarette vapor compared to tobacco smoke.
However, there was some concerning data regarding the level of formaldehyde found among the 12 brands of electronic cigarettes, which ranged from just 3.2 micrograms per 150 puffs to 56.1 micrograms per 150 puffs. While the minimum amount overlaps with that found in medicinal inhalers, the considerable difference between the tested brands is somewhat concerning. Formaldehyde may result from the heating of propylene glycol or the oxidation or hydrolysis of glycerin, and while it doesnt pose significant danger in low levels, it can be lethal in high concentrations. As Doctor Michael Siegel notes on his blog, this study presents the FDA with the opportunity to examine the reasons for these significant differences and hopefully, to find ways to produce e-cigarette liquid that does not produce high levels of formaldehyde. Its important to understand that while this international study clearly demonstrates that e-cigarettes are safer than analogs, it also proves they are not safe in an absolute
sense.