If I had a dollar for every time this study used the word "assumed," I'd be able to buy a Provari today.
And yeah, the 70ml/puff thing had me scratching my head. I was thinking they meant .70/ml per puff (which would be high by my vaping standards), but they went with 70ml/puff.
I also thought... perhaps they meant MICROliter, but that's a completely different prefix (uL with that funky "u" that I don't know how to type).
So by their assumptions, I direct-attach a 100ml bottle of eliquid to my box mod and get less than 2 puffs. Can you imagine the clouds you'd blow? Forget fogging up a small office, I'd fog up the entire building.
Unless there is a typo (which is unforgivable in a published study by educated scientists), there is one other option: they purposely used ungodly amounts of eliquid per puff to greatly exaggerate the amount of harmful compounds shown in the direct and indirect vapor (err, aerosol), and hoped that nobody would notice. Certainly the mass media won't.
The other flaw is they didn't describe the type of vaping equipment they used. I see a fair amount of formaldehyde and acrolein shown, which (per my understanding) is created by overheating / dry hitting. It reeks a bit of the whole formaldehyde / CE4 study a while back.
DrMA called it, a pile of bovine waste, but one that is still steaming and particularly odorous.