This process has been deemed safe by NASA (it has been used in the space station) and also certified by the Federal Drug Administration (FDA) as a Type 2 Medical Device that is approved for use in hospitals, including neonatal and baby wards
Journal of Health Economics
The researchers compared the echocardiography measures of current smokers versus never smokers after adjusting for age, sex, body mass index, hypertension, high cholesterol, diabetes and lung function
In the survey, they reported smoking one cigarette for an average of 1 minute and 33 seconds with 15.6 puffs, but the actual measurement showed they smoked for over 2 minutes with about 20 puffs
More than 80% marked the answer: It comes in flavors I like. FDA documents given to White House officials ahead of their deliberations suggested that was no coincidence
They are cheap enough that if you do lose it, you arent crying over your wallet