effects of smoking a cigarette for the first time Health tobacco Smoking and Chronic Lung Disease:
Description
Electronic cigarettes were initially, designed as smoking cessation devices, for addicted cigarette smokers who were attempting to quit smoking
Tobacco use is a major threat to public health
Targeted inhibition of glutamine-dependent glutathione metabolism overcomes death resistance induced by chronic cycling hypoxia

Withdrawal symptoms are much worse than weaning off
Cigarette packets feature graphic health warnings that include images of diseased lungs and gangrenous limbs

This can give you some insight into how well a particular model performs in real-world conditions