Further studies into flavouring is required.
Studies on popular flavours such as bubble gum, cotton candy, chocolate and so on in the US by Portland State University in Oregon: found that the flavouring chemicals comprised anywhere from 1 to 4 percent of the e-cigarette liquids, equivalent to about 10 to 40 mg/mL. Of the 24 compounds used, 6 are aldehydes known to have respiratory irritants. If you vape all day on one of these flavours using e-cigarette cartridges or e-liquid, the exposure is above the safety guideline limit.
The flavours are originally based on consumption and your stomach is a different organs than your lungs. Further studies are required to investigate the effects of flavours with e-cigarettes.
The threat of formaldehydes
A study published into a study into the formaldehyde with e-cigarettes that was published in the New England Journal of Medicine in January 2015: identified that the risk was significantly more with high voltage setting hardware.
So clearly it makes no sense to have high voltage hardware set to the highest setting.
Regulations are needed, know the ingredients
It is clear that tighter regulations are needed on the flavourings used in e-cigarette cartridges and e-liquids. Further studies are needed on inhaling as compared to edible flavourings. Clear labelling of ingredients and maybe limiting the amount of added flavouring, possibly reducing the flavourings such as Bubble Gum that appeals to the younger generation. E-liquids and e-cigarette cartridges should be made in EU with full traceability on all ingredients used.
What do we know so far
“We really have no idea about the potential health consequences yet,” said Dr. Avrum Spira, professor of medicine at Boston University School of Medicine. He added “The prevailing wisdom is that they’re less harmful than cigarettes.”
