There have been tests using flavorings on lab animals and cell cultures that indicated thatHave they not done any lab tests on exposure to the inhalation risks of the flavourings?
they could be harmful. However these tests were done with the flavorings alone in pure
form.
There have been many tests using e-juice with lab animals,cell cultures and healthy
tissue samples indicating e-juice causes virtually no harm.
To my knowledge there have been no studies specifically using e-juice with known high
concentrations of diketones dispersed and suspended in the juice to determine if any
harm is caused.
The specific harm people fear is OB, bronchiolitis obliterans ,or more popularly called
popcorn lung. This is an extremely rare lung disease found only in lung transplant patients
when the body rejects the lungs prior to an outbreak between the late 1990's thru the
early 2000's that occurred in factory's where the flavorings were used or made. just this
year 2 more cases were reported stemming from a coffee roasting plant in Texas.
All told less than 30 cases have been reported. All but 1 having occurred in factory settings.
not only is this extremely rare its occurrence appears extremely rare even in settings it is
most likely to happen. Namely commercial processing plants. Its interesting to note that
with the sub-ohming culture in the vape community there hasn't been any reported cases
aside from obvious accidents of any serious damage or disease.
In the end its an individuals responsibility to decide what is right for them.
there is a diketone free vendors thread in the e-juice forum for those concerned.
Diketones-free vendors
Regards
Mike