Re: No vaping in the workplace please
Because maybe the majority of the "Smoke" from an e-cig is water vapor?
No it is not.
The "smoke" from an e-cig is vegetable glycerine or propylene glycol. Usually it's a mix of the two, though the proportions vary from manufacturer to manufacture and product to product from the same manufacturer. Not because of crappy quality control but because of different recipes with different characteristics.
There is no more water vapour in exhaled e-cig smoke than in the breath you exhale. We all exhale water vapour. Vapers do not exhale more water vapour than non-vapers.