These gentlemen are clearly not familiar with electronic cigarettes. If they were, they would have known that CE4 clearomizers are somewhat dated, and that their popularity has waned greatly.
They would have also known that no vaper uses a CE4 clearo at 5V all day. That’s a ridiculous supposition, because even those with iron lungs wouldn’t be able to handle the acrid burnt taste that would come with running a clearomizer with such limited airflow at high voltage. It would taste completely horrible and be physically painful to inhale using that setup. Had the researchers given this setup to anyone, they’d have found in 2 hits that this is an unreasonable voltage that no one would use for a CE4 under any circumstances.
What they’ve taught us is that, based on the data in this study, “If your juice tastes like flavors, and not like fire and brimstone, then you’re not inhaling formaldehyde or agents that produce it.”
This is not to say that the voltage is what produced nasty chemicals. It was a combination of super high wattage for a tank designed to take half of what it was getting, lack of wicking because of the top-coil design and hits every 30 seconds, and really tight airflow. Vaping at 5V is not necessarily a bad thing in and to itself. You just need the right setup to do so, and a CE4 is definitely not it.
These two researchers agreed in a paper this past November (here) that molecules not previously seen in e-cig vapor are indeed found at temperatures over 600°C… wait. WHAT? 600°C is over 1,100°F – we’re talking about the near-melting point of aluminum! Nobody has the motivation to vape like that, even if they wanted to. These researchers are clueless when it comes to the products they are studying and speaking about in the media.
Greg Connelly of the American Vaping Association said it best, I think:
“I can take a steak and I can cook it on the grill for the next 18 hours, and that steak will be absolutely chock-full of carcinogens. But the steak will also be charcoal, so no one will eat it.”