Details Created on Monday, 05 May 2014 05:30 A study to be published in Nicotine and Tobacco Research was featured in the and has generated a lot of interest.The article mentioned that e-cigarette vapor can be the source of carcinogens, depending on the heating process.The article is true and expected.We know that thermal degradation can lead to the release of toxic chemicals.And we know that formaldehyde, acetaldehyde and acrolein have been found in vapor.There is nothing new to it.However, this study found that levels may approach those present in tobacco cigarettes.Of course there some inaccuracies in the NYT article, such as that nicotine gets overheated (which means nothing).Herein, I present with more detail the results of this study.Researchers used an EGO Twist battery (variable voltage) and a top-coil clearomizer (with unknown resistance, thus unknown wattage delivery).At 3.2 and 4.0 volts, formaldehyde levels were 13-807 times lower compared to tobacco cigarettes!!At 4.8 volts, formaldehyde levels were increased by up to 200 times, and reached to levels similar to tobacco cigarettes.

The main criticism to this study is that in my opinion it is highly unlikely that a top-coil atomizer like the one used in this study would be used at 4.8 volts.At a resistance of 2.2 Ohms that would represent 10.4 watts of energy delivery to the atomizer.I tried 10 watts with an EVIC battery in a Vivi Nova top-coil atomizer (for a clinical study i perfomed few months ago), and many vapers were unable to use it due to the dry puff phenomenon.Unfortunately, the researchers did not measure and could not provide any information about the resistance of the atomizers, thus it is unknown how much energy was delivered to the atomizer.In my opinion, this is crucial.Moreover, it is very important to examine new-generation (rebuildable or bottom coil) atomizers at similar conditions, since it is more likely for vapers to use such advanced atomizers for high-wattage vaping.I am certain that, due to better liquid resupply to the resistance and wick, the results will be much more favorable.Another important point is that, although formaldehyde levels can be similar to tobacco, several other toxic chemicals are completely absent from e-cigarette vapor.

For example, acrolein was completely absent although they used liquids with glycerol as the main ingredient.e cigarette rdaIn fact, glycerin-based liquids had much lower formaldehyde levels in vapor compared to PG or PG/VG liquids, suggesting that they are much safer to use.e cigarette sydneyAs a general remark, finding few chemicals at similar levels does not mean that the risk is equivalent to tobacco cigarettes.e cigarette mississaugaOf course, all this information was not presented in the NYT article.e cigarette alma miConcerning the remarks about dripping, we should admit that dripping does not allow the user to see how much liquid is present in the atomizer.e cigarette aigues mortes

The same happens with cartomizers.We currently do not know whether the elevation in formaldehyde levels happens just at the time of dry puff phenomenon, or it happens earlier (before being detected by the vaper).e cigarette tricksClearomizer-type atomizers (also called tank systems) seem to be the future in e-cigarette use, giving consumers the ability to know when they need to resupply the atomizer with liquid.An Austin man says a battery for his device blew up in his pocket causing severe burns.Hamid Sadeghy is a new e-cigarette user.At the urging of his wife, he decided to quit smoking in May."I'ma little over a pack a day smoker and in a matter of a week I went down to one or two cigarettes a day and I was really happy," he said.Sadeghy owns an auto glass company.On June 30th, he was installing a windshield when he says he felt a vibration coming from his pants pocket where he had an extra battery for his e-cigarette."It

was like a firecracker.It made the same exact noise.A hissing sound and then burning sensation," Sadeghy said."Once I pulled the pant down I saw a whole bunch of chemical all down my leg.Here, the skin was burned.I pealed it off.The side of my leg I'm sure this is the remains of the chemical on my body."Hehasn't returned to work since and has difficulty walking."I'vereally been in pain.Simple chores, getting up to go to the bathroom or get a glass of water it's an ordeal," said Sadeghy.Attorney James Wood traced the battery to learn it is lithium ion and called the VTC5.It is made by a well-known electronics company, but is widely counterfeited.Wood believes Sadeghy's are counterfeit."Theinternet shows a lot of photographs and videos of these batteries failing causing fires and explosions with sometimes very devastating effects," said Wood.Thomas Kiklas, co-founder of the Tobacco Vapor Electronic Cigarette Association, tells FOX 7 a battery should never be placed in one's pocket as coins and keys can easily cause it to short and overheat.Kiklas adds, "consumers should absolutely only purchase their vaping products from reputable companies that warranty and trace all product technology.""I

think this product was placed on the market with someone knowing it posed a danger to the consumers who would eventually use it," said Wood."Ithappened to me already.I'm hoping we can prevent this from happening to other people," said Sadeghy.Wood says if distributors are found to know that a certain product is dangerous, federal charges can be filed against them.Readers Comments 6 Share Your Story e-cigarettes are smokable, refillable or replaceable cartridges or containers that hold liquid that contains nicotine, solvents, and flavors.When a person inhales ("vaping"), they are putting a negative pressure on the device that triggers a battery to heat the liquid solution, which is then atomized into inhalable vapor.Depending upon the cartridge, it may contain no nicotine or up to about 16 mg nicotine.One container or cartridge has enough fluid for about 250 "puffs."However, nicotine concentrations and fluid volumes plus the compounds in the fluids can vary, depending upon who makes the e- cigarette.

It is not known how safe or how unsafe these products are.Nonetheless, nicotine is considered to be very addictive, and that seems to be a cause for concern.Low doses may cause nausea, vomiting, abdominal pain, and eye irritation.High doses of nicotine may cause tachycardia, high blood pressure, seizures, coma, and death.Also, the FDA reported detecting ethylene glycol in some of the e-cigarettes and cancer-causing substances called nitrosamines in others.It took several decades to determine problems associated with tobacco use.It is likely that it will also take some time and study to determine how safe (or unsafe) e-cigarettes are.Experts claim that in order to stop cigarette smoking, it is probably better to use studied material such as nicotine gum, nicotine patches and/or counseling than to use e-cigarettes.They also suggest people don't start smoking e-cigarettes for fun or for quitting any tobacco products.