The use of VG/PG or whatever in a nebulizer to a vape
tank is comparing apples to oranges. One is a suspension created by airflow, the nebulizer, and the other by heating with a wire, vapor.
There are many ways to atomize a base mix. Compressed air as with a hand pump sprayer.
Compressed in a container with a gas used as a propellant. Airflow as used in a nebulizer or
a basic home humidifier. The heat created by the coil is just another form of force needed
to cause the atomizing of the base liquid.The vaporizing residual water atomizes the base
liquid of PG/VG,flavorings and,nicotine. So one is not comparing apples to oranges. One is
comparing varieties of apples to other varieties of apples. The end result is the same.
Vapor containing a very finely atomized mist of the base liquid.

Regards
Mike