Furthermore, it is well known that electronic cigarette users do not inhale more deeply than smokers. While smoke does enter the distal airways - which is why adenocarcinoma rates have increased so dramatically - vaping involves aerosol inhalation and the aerosol is mostly absorbed in the upper, not the lower airways. As with a nicotine inhaler, most of the nicotine absorption occurs in the upper airways.
LAST:2014 Hottest Joyetech eRoll PCC 1000mAh Black/Silver/White in stock |NEXT:Most Popular E Cigarette Mini Protank Bottom Coil Atomizer