Second hand nicotine vaping exposure raises risk for bronchitis, breathing problems UPI.com Does Vaping Cause Second Hand Smoke V2 Cigs UK 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 Electronic Cigarette Aerosol and Indoor Air Quality US EPA 2nd Hand Vape Smoke Exposure to secondhand vaping fumes among teens raises concerns