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The researchers also found that "the propylene glycol itself was a potent germicide. One part of glycol in 2,000,000 parts of air would--within a few seconds--kill concentrations of air-suspended pneumococci, streptococci and other bacteria numbering millions to the cubic foot."
Propylene glycol, the primary ingredient in the electronic cigarette cartridge, may be a powerful deterrent against pneumonia, influenza, and other respiratory diseases when vaporized and inhaled according to a study by Dr. Oswald Hope Robertson. Decades before the e cigarette was invented, a study was conducted by Dr. Robertson of the University of Chicago's Billings Hospital in 1942 on inhalation of vaporized propylene glycol in laboratory mice. A more in-depth article was printed in the 1942 issue of TIME Magazine www.time.com... for November 16th. "Dr. Robertson placed groups of mice in a chamber and sprayed its air first with propylene glycol, then with influenza virus. All the mice lived. Then he sprayed the chamber with virus alone. All the mice died."
"We're concerned about the potential for addiction to and abuse of these products," says FDA spokeswoman Rita Chappelle. "Some people may mistakenly perceive these products to be safer alternatives to conventional tobacco use." The agency has opened an investigation and has refused to allow e-cigarettes, e-cigars and e-pipes to cross the border because they're considered new drugs that require FDA approval.
The question is ‘What kind of regulation?’ Some opponents of electronic cigarettes have stated they believe those who manufacturer and sell electronic cigarettes are trying to skirt regulation by the FDA. They ask “why don’t they just go through the normal NRT process like the nicotine gum or patch?”. I will answer these questions from the perspective of one company who sells electronic cigarettes. We are NOT opposed to regulation. In fact one of the reasons we helped form the Electronic Cigarette Association is because we believe there does need to be a certain level of regulation. This includes, among other things, how it is manufactured, how it can be marketed, proper warnings, and most certainly keeping it out of the hands of minors. Some of these regulations are easy to implement and others will take time and help from an agency such as the FDA.
Originally posted by nunya13
Please don't fall for this. Propylene glycol is also used in brake fluid and antifreeze. I bet you could kill bacteria and germs with antifreeze. Doesn't mean I want to inhale it into my lungs!
A big reason why people are switching to all natural soaps and shampoos is because of the wide-spread use of propylene glycol in commercial products. It's a known skin irritant and can cause birth defects and kidney/liver/heart damage.
These effects occur, of course, after exposure to high quantities of it but you propylene glycol is in almost every toiletry you use, it's in food, it's in prescription meds.
It's just like saying that eating a food high in cholesterol isn't harmful to you, but after an entire day and weeks of eating foods high in cholesterol, you'll begin to reap the effects.
Read this link (warning, there's a profile view of a naked chick at the top of the page) Effects of Propylene Glycol
edit to remove link
[edit on 10-11-2009 by nunya13]