Feel free to think of this as nitpicking,
I do :- ) You're right that air is a big component, and I was considering the contents of the eliquid (which is what is different than just breathing
) where depending on your nic level and how you flavor; but the diluent/blend is 100% PG or VG or a combination of the two - which in my diy is over 50% of the eliquid (ie. 17 parts of a 30 part whole). The nic base is mainly PG or VG along with nic (7 parts) and 6 parts flavoring - which has a base of PG/VG/PGA/H2O - whatever in my case is the best solvent for flavor.That said - my point is that the long term science on inhalation from PG and VG factory workers - ie Dow Chem studies that have been done since 1947 on a regular basis ALSO includes the air that the workers inhale along with the VG/PG upon which the tests are based - therefore to say 'we don't know the long term' is wrong -- along with the fact that nicotine (not the harmful aspect in smoking) in smokers (also inhaling air) is rather stupid to claim 'we don't know'. We DO know.
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