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 vape exposure: Risks and side effects Secondhand Vaping: E Cigarettes Pose a Risk to More Than Just the User Eastburn Hypnotherapy Center Denver, CO Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Secondhand smoke and secondhand aerosol