We'll have to start a checklist called Studies To Support Vaping.
Surfactant in your lungs is critical for respiratory function. When you smoke combustible cigarettes this surfactant becomes coated and disrupted by tar.
A study by Rebecca J. Przybyla et al. published last month, tested e-cigarette use on calf lungs. The goal was to study the effects of vapor on the mechanics and surface tension of the lungs.
In regular cigarette use, surface tension was greatly reduced during lung function. This is one of the factors in the lungs ability to expand and compress at a normal rate for humans.
E-cigarettes still had an effect on the structure of the surfactant but there was no noticeable damage to the interfacial system - the part that keeps everything working together. Combustible cigarettes caused significant disruption in this area, however.
There were no differences in the effect from e-cigarettes no matter what dose or flavor was used but conventional cigarettes had a "drastic, dose-dependent effect..."
This is yet another win for the vaping community and the battle for health education and the public's' ability to make informed decisions.