Guidance for Secondhand Marijuana Smoke in Multi Unit Housing American Nonsmokers' Rights Foundation no smoke.org Secondhand Vape Exposure: Effects, Who's at Risk, and More 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 Asthma and Allergy Foundation Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping is Why Vaping is Dangerous, Especially for Children with Asthma The National Environmental Education Foundation (NEEF)