As lung surgeon Alton Ochsner wrote in 1939, Inhaled smoke, constantly repeated over a long period of time, undoubtedly is a source of chronic irritation to the bronchial mucosa. Researchers also noted an increase in lung cancer cases, but the incline was commonly attributed to other types of inhaled toxins, like automobile exhaust, tar fumes and factory smog
I wanted nothing to do with it
To prevent plug holing, smoke control systems may use carefully designed exhaust vent placements, larger vent sizes, or specific airflow controls to ensure that only the smoke layer is removed, maintaining clear and safe evacuation paths
They dont contain any nicotine at all
1 2 "A Decade of e-Cigarettes: Limited Research & Unresolved Safety Concerns"