Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand Smoke Second hand E cigarette Vapour Increases Risk Of Poor Respiratory Health Study Finds Cigarette Smoke Detector Secondhand vape exposure detectable in children's saliva, breath Contemporary Pediatrics Second Hand Vaping: Minimal Impact Compared to Smoking Secondhand vape plumes could form lung damaging radicals American Chemical Society