Hands and fingers also bear the brunt of smoking, and not just from holding a burning cigarette: A person can get nail clubbing that changes the shape of the nail bed, Madan said, and peoples fingers can turn blue or red due to vasoconstriction and low blood supply
Just take a look at the filter after a few days of use in a room where cigarettes are smoked, and everything will be clear to you
89 468470 (World Health Organization, 2007)
Vape liquid generally come in six standard nicotine levels: 0 mg/ml, 3 mg/ml, 6 mg/ml, 12 mg/ml, 18 mg/ml, and 20 mg/ml
The actual nicotine dose per smoking session can be comparable or even higher for pipes (a bowl may contain 2-3 grams of tobacco versus 0.7 grams in a cigarette), but the delivery mechanism and absorption rate differ substantially