Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Vaping not only affects your own health, it can also harm your loved ones and those around you. Passive (or second hand) vaping can happen when you're vaping in the same room, 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 The Impact of E Cigarettes and Asthma: What You Need to Know How secondhand smoke, thirdhand smoke & vaping affects kids