Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Can you get second hand smoke from a vape Secondhand Smoke and Electronic Cigarette Aerosols US EPA Can you get second hand smoke from vape? Vaping Post Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine