cigarette smoke in lungs π The image of blackened isn't a prop. It's the harsh reality of smoking. While healthy lungs are a pinkish color, causes permanent, heavy staining from tar and other particulate Cigarette Smoking and your Health
Description
The American Historical Review 3#5 online Hahn, Barbara (2011)

E-liquid strength ranges from zero nicotine, up to 20mg/ml, or 2%

Perfumes and fragrances: Colognes, perfumes, air fresheners, and other scented products can irritate your throat and lungs, making your cough worse

Archived from the original (PDF) on 25 October 2013

Also included in this theme are two contemporaneous Chesterfield ads from 1931, one of which depicts a doctor actually prescribing Chesterfield cigarettes to a patient
Since the device doesn't burn the cigarette to release smoke or ash, PMI markets it as a "healthier" alternative to traditional cigarettes