Is it risky to smoke or vape around companion animals? RSPCA Knowledgebase Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Is Secondhand Vape Smoke Bad for You? The Truth on the Trend Molekule E Cigs and Second Hand Vaping: Dangers and Protections Secondhand smoke and secondhand aerosol Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA