Secondhand smoke and secondhand aerosol Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Is Second Hand Vape Bad? What Science Says About Health Risks Mr Fog Enjoy To The Last Puff Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Is it risky to smoke or vape around companion animals? RSPCA Knowledgebase