Study demonstrates that dry-burning may be bad for you

[DrMA]

In this study, the authors used a "smoking" machine to study various carbonyl compounds that may be present in vapor. They found that "carbonylic compounds were hardly detectable in earlier collected fractions," i.e. when the wick/coil is wet as in normal vaping, there's nothing to worry about. However, high levels of formaldehyde were found "during the last third of the smoking procedure," i.e. once you dry out the wick/coil, nasty stuff starts coming off.

Surprisingly, the punch line is far less ANTZy than I expected: "Our data demonstrate the necessity of standardized machine smoking protocols to reliably address putative risks of e-cigarettes."

http://link.springer.com/article/10.1007/s00204-014-1294-7

 

[NorthOfAtlanta]

This almost sounds like they get it. They have to see how we use them and design a machine that vapes like we do to get accurate results.

 

[Kent C]

This almost sounds like they get it. They have to see how we use them and design a machine that vapes like we do to get accurate results.

Something brought up several times in the Burstyn study. Machines are no good at all for second hand vapor. In a controlled/sterile environment without the use of cigarettes and carpeting, furniture checked for formaldehyde, they could prove useful. So far, no study that I've read has done that though

 

[dragonpuff]

In this study, the authors used a "smoking" machine to study various carbonyl compounds that may be present in vapor. They found that "carbonylic compounds were hardly detectable in earlier collected fractions," i.e. when the wick/coil is wet as in normal vaping, there's nothing to worry about. However, high levels of formaldehyde were found "during the last third of the smoking procedure," i.e. once you dry out the wick/coil, nasty stuff starts coming off.

Surprisingly, the punch line is far less ANTZy than I expected: "Our data demonstrate the necessity of standardized machine smoking protocols to reliably address putative risks of e-cigarettes."

http://link.springer.com/article/10.1007/s00204-014-1294-7

They also mention in this study that 5 of their 28 samples contained significant amounts of ethylene glycol, to the point of being "the dominant compound" in these liquids I want to know who made those liquids...

 

[Steamix]

Well, at least they've gathered enough insight by now that machinery to test and check on tobacco products isn't going to be of much use whren researching e-cigs...

With that learning curve, ANTZ might - repeat might - be willing to heap less scorn on things vaping by about 2670 A.D.

These smoking machines aren't even very reliable when it comes to testing the products they're meant for:

Won't mention any brand names, but a good number of years back, cigarettes with incredibly low nicotine/tar value hit the market. And they did not lie about these very low numbers. They were indeed reproducible - on smoking machines. Which doesn't clamp down on the specially designed filter like a pair of human lips does.
Which doesn't draw harder and longer when the nic flash isn't there. Once it perspired that it all was just some trickery with the filter custom designed to work with smoking machines, they had to be taken off the market. Wasn't an ANTZ victory. Competitors saw to it...

 

[Kent C]

They also mention in this study that 5 of their 28 samples contained significant amounts of ethylene glycol, to the point of being "the dominant compound" in these liquids I want to know who made those liquids...

Prestone?

Wondering why that 'quote' from DrMA didn't take???

 

[sonicdsl]

Prestone?

Wondering why that 'quote' from DrMA didn't take???

OP was missing a tag. Fixed now

 

[AgentAnia]

....Well, at least they've gathered enough insight by now that machinery to test and check on tobacco products isn't going to be of much use when researching e-cigs...

With that learning curve, ANTZ might - repeat might - be willing to heap less scorn on things vaping by about 2670 A.D....

^^^ This, absolutely ^^^

Goes to show, Big Anything (research, TC, regulation, legislation) is so far behind the learning curve vs. ecig research and development, I doubt they'll ever be able to catch up in any significant way.

 

[DrMA]

OP was missing a tag. Fixed now

thanks, sonic.