Summary
"In this study, we investigated the emission product distribution of VEA vaping emissions produced
at temperatures ranging from 176 to 356˚C, corresponding to a variable voltage vape
pen set at 3.3 to 4.8V. VEA degradation was found to be greatly enhanced with increasing
temperature, resulting in a shift towards the production of lower molecular weight compounds,
such as the redox active duroquinone (DQ) and short-chain alkenes. Low temperature
vaping of VEA resulted in the production of long-chain molecules, such as phytol,
exposure to which has been suggested to induce lung damage in previous studies. Furthermore,
differential product distribution was observed in VEA degradation products generated
from vaping and from pyrolysis using a tube furnace in the absence of the heating coil at
equivalent temperatures, suggesting the presence of external factors such as metals or oxidation
that may enhance VEA degradation during vaping. Overall, our findings indicate that
vaping behavior may significantly impact the risk of exposure to toxic vaping products and
potential for vaping-related health concerns."
Citation
Canchola a, Meletz R, Khandakar Ra, Woods M, Lin Yh. Temperature dependence of emission product distribution from vaping of vitamin E acetate. PloS one. 2022;17(3):1. doi:10.1371/journal.pone.0265365
