To be completely honest, Trueba et al. actually found that not only did taking an exam affect nitric oxide levels, but it also produced decreases in lung function measured by spirometry. This is something that has not been observed for electronic cigarettes.

LAST：2014 electronic new products ego Bullet head E-bullet electronic cigarette bulk buy from china |NEXT：Fassionable Portable charge case 510 pcc F818 from Shenzhen supplier