A highly publicised study by Public Health England (PHE) that claimed that e cigarettes are 95 percent less harmful than tobacco has been attacked by medical journal The Lancet for relying on weak Electronic cigarette Wikipedia New Study Suggests E Cigarette vapor Is Just as Harmful to Lungs as Cigarette Smoke E Cigarette Reviews and Rankings E cigarette advertising exposure among South African adults in 2017: findings from a nationally representative cross sectional survey BMJ Open E Cigarettes "Around 95% Less Harmful" Than Regular Smoking IFLScience Resources