E Cigarettes' Effect On The Immune System Could Make Them No Better Than Regular Cigarettes Smoke And Steam Systems In Comparison, Normal Cigarette, Tobacco Heater With Sticks And E cigarette With Liquid On A Brown Table, Copy Space, Selected Focus Stock Photo, Picture and Royalty Free Image. Image E cigarettes disrupt lung function, raise risk of infection Urgent warning about 'hidden risk' of e cigarettes and vapes