OK so here is what you need to do: decide if you want a war with your superiors, or if maybe discretion is the better part of valour. Personally, in your position, I'd take that option - you can't win this one as it looks as if your seniors are set on this.
However if you want to risk your job on a point of principle, this is how you do it: go to the CEO and say, "Instructors are teaching unsubstantiated propaganda that is detrimental to public health and I want it stopped. I will arrange an interview for you with a professor of public health and electronics engineers if you need their evidence. The instructors teaching false information will not be able to provide any evidence to substantiate the anti-public health propaganda they are promoting within this establishment. If you do not take action then I will present this information to the press and inform them that this school is teaching witchcraft masquerading as health studies."
We can get you the backup from Profs and engineers if that's what you want. There are now more than 100 different clinical studies and lab tests of ecigs, and even the most sensitive examinations of
ecig vapour in a sealed chamber did not locate any 'lithium carcinogens'. Even Prue Talbot, a 'researcher' paid huge sums by Pfizer to cobble up hatchet job studies on ecigs was not able to arrange environmental hazard research to find any 'lithium carcinogens' even though they found 'nanoparticles' aka fairy dust.
Nothing of this kind is impossible no matter how unlikely, so here's how it could be arranged:
1. Get an auto mini ecig.
2. Wear a nomex fireproof balaclava hood and poke a small hole in it for the ecig.
3. Put on shatterproof glasses, then add an industrial face mask on top, half-down over the top of your face.
4. Hold the ecig in a pair of pliers, while wearing a welder's heavy leather glove.
5. Take a lit butane, propane or oxy-acetylene torch in the other hand.
6. Apply the torch to the battery end of the ecig, while puffing away merrily on it.
7. As the battery melts and goes into thermal runaway, and ruptures the internal casing, it is possible you might be able to inhale pyrolytic end products from the melting battery that have found a route into the air passage through the auto model. Anyway, breathe in the thick, toxic smoke. Try not to choke although this could be difficult.
8. Repeat daily for ten years in order to get a decent dose, hopefully leading to oropharyngeal/lung cancers (although there is no real guarantee of this; in any case, you'll most likely be poisoned before you get cancer).
I don't think this procedure is advisable or even possible. Otherwise, you can't inhale fumes from a battery because (a) they are sealed in the battery container, (b) they don't produce measurable toxicants unless they are melting (otherwise such materials would have shown up in the multiple air quality sealed chamber tests), and (c) adding an excipient to the air surrounding a battery and getting a new kind of result is a first for science, and will be really great news to the electric car builders who have spent tens of millions looking for problems without finding that one (maybe it means you can't drink a coffee in an electric car, which as they are powered by the same
batteries is like sitting on a thousand ecigs).
So it's your choice: bite your lip and recognise that a percentage of what you are taught is wrong, always has been, always will be - live with it; or pick a fight and risk losing your job. Witchcraft was a respectable idea in its day, just like 'inhaling lithium carcinogens'. Next they will be teaching you that thoracic surgery involves fairies and spells. Maybe it does, in your hospital.