E-cigarettes generate high levels of aldehydes only in “dry puff” conditions. (GET THE FACTS!)

“You have certainly seen the reports, accompanied by huge media campaigns, stating that e-cigarettes generate many times higher levels of carcinogenic aldehydes compared to tobacco cigarettes. We have always responded that such findings were the result of severe overheating of the device, which the vapers identify and avoid. We have repeatedly referred to the dry puff phenomenon as an explanation of these findings and why they were unrelated to realistic use. The authors of those studies and reports should have known the existence of the dry puff phenomenon since I have presented it in detail in a publication back in 2013! However, it is hard to explain this to someone who has limited background on e-cigarette function. So, it was time to present true evidence which, as always, have the strongest impact.” Dr Farsalinos


These findings emphasise the importance of making clear the conditions in which tests of this kind are undertaken and avoiding sweeping assertions that can mislead the public. Vapers are not exposed to dangerous levels of aldehydes. My reading of the evidence is that e-cigarettes are at least 95% safer than smoking. Smokers should be encouraged to switch to vaping.

Professor Peter Hajek

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One thought on “E-cigarettes generate high levels of aldehydes only in “dry puff” conditions. (GET THE FACTS!)

  1. I came across your Website after researching the Irish Cancer Society during my advocacy for “E-Cigarettes (I prefer Tobacco Harm Reduction devices) and I am a little concerned. The ICS requested research material for them to study, but I fear there is a conflict of interest that will render everything I do, pointless, since the conflict of interest is their corporate sponsors. There are two entities who feel threatened by the “E-Cig” industry, Big Tobacco and the makers of Smoking Cessation Drugs and NRT.

    I quit smoking with the help of an eGo style E-Cig after failing 3 times using NRT’s and I upgraded to a Subtank and VT(variable temperature) Mod in April this year. I believe Vaping has saved my life, I used to get depressed, but when I quit smoking, I don’t get depressed anymore and I am able to exert myself without getting out of breath. I started smoking, age 14 1979 and I quit March 2014.

    Big Tobacco claims the Nicotine in E-Cigs is unsatisfying to people who try E-Cigs, but with nearly 3Million switchers in the UK, 250.000 switchers in Ireland and the countless Millions of switchers around the World, I think their claims are bogus. Take this article posted in the New York Times for instance “Race to Deliver Nicotine’s Punch, With Less Risk” By BARRY MEIERDEC. 24, 2014 “The rush by Philip Morris and other tobacco companies to develop new ways of selling nicotine is occurring as more consumers are trying e-cigarettes, devices that heat a nicotine-containing fluid to create a vapor that users inhale. While only a small percentage of smokers have switched to the devices — experts say early e-cigarettes did not deliver enough nicotine to satisfy a smoker’s cravings — major tobacco companies are deploying their financial resources and knowledge in a bid to dominate a potentially huge market for cigarette alternatives”.

    NJOY The company, which makes only e-cigarettes, is improving nicotine delivery in its product by using a pharmaceutical agent that increases delivery of the drug to the lower part of the lungs.

    LORILLARD In a new version of blu eCigs, the company increased its nicotine content to 2.4 percent from 1.6 percent and redesigned an internal cartridge to deliver more nicotine.

    ALTRIA The company increased the amount of nicotine used in MarkTen, an electronic cigarette first sold in 2013, to 2.5 percent of its liquid content from the original level of 1.5 percent.

    It is obvious they aren’t interested with THR, they are determined to keep people completely addicted to Nicotine.

    The Devil really is in the detail “Our efforts are guided by two objectives,” said Dr. Patrick Picavet, the director of clinical assessment for Philip Morris International. “To develop a range of products that can be scientifically substantiated to reduce risks and that are acceptable substitutes for smokers who can’t or aren’t willing to quit.”

    “Scientifically substantiated”?? “Acceptable substitutes for smokers who can’t or aren’t willing to quit.”?? Don’t we in the Vaping community already have that? This is what the TPD is all about, making Big Tobacco’s E-Cigs the industry standard which will force many people back on to the combustibles because the Vaping industry will be forced out of business.

    I really do fear for the future. Corporate Sponsorship is part of the problem and needs to be addressed.

    Liked by 1 person

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