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- Our results were revealing in identifying a very small contribution of flavorings on aldehyde emissions. In fact, aldehyde levels were so low that consumption of 5 grams liquid per day would expose vapers to less formaldehyde and acetaldehyde than just staying at home and breathing air. For acrolein, exposure was orders of magnitude lower compared to NIOSH-defined recommended safety limits. To give you an idea of the differences in results, the authors of the original study found up to 7000 ug/g formaldehyde, while we found a maximum of 62 ug/g.
- In conclusion, we confirmed that flavouring compounds can contribute to aldehyde emissions from ECs, but such contribution, detected in only 3 liquids and two flavours herein, was minimal.