Vapes '95% safer' than cigarettes messaging backfired 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 Scientific evidence proves vapes are less harmful than cigarettes 24SHARE Groundbreaking Study Finds E cigarettes to be 95% Safer Than Traditional Cigarettes Smoke And Vapes Centre