Some elements of smoke are attribute of the combustion supply. Guaiacol and its derivatives are items of pyrolysis of lignin and therefore are attribute of Wooden smoke; other markers are syringol and derivates, and also other methoxy phenols. Retene, an item of pyrolysis of conifer trees, is undoubtedly an https://broadfar.com/oraco-pioneering-a-smokeless-future-with-innovative-nicotine-delivery/