I have a whip vaporizer and I was wondering, do you think the vapor produced would still be basically free of the harmful substances produced by combustion irregardless of where the cannabis buds were bought (i.e., bought just from any random person who sells or deals it? This may include material that was not grown organically, and I'm wondering if that would effect how health-conscious of a "vape" it would be. As I'm aware, I'm almost positive that all non-organic plants are not treated with any sort of pesticide for at least the last few weaks before harvest in order to ensure a residue-free result. I'm hoping the amount of any foreign, unnnatural substance (other than the natural pure cannabinoids) would be negligible and undetectable in the vapor produced. Thanks for any input.