Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times The Impact of E Cigarettes and Asthma: What You Need to Know Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Parents using e cigs expose kids to dangerous secondhand vapor Futurity Is Secondhand Vape Smoke Harmful Secondhand Vape Exposure: Effects, Who's At Risk, And More Australia Is Second Hand Vaping Dangerous