Is Secondhand Vape Smoke Bad For Pregnancy? Experts Explain The Risks Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de About one in four adults in California report being exposed to secondhand smoke or vape in the past two weeksoften on sidewalks, at home, and in recreational spaces like parks and beaches. The health risks of secondhand smoke are widely understood. But what about secondhand vaping? Does Vaping Cause Secondhand Smoke? Sleeping baby safety tip: Keep baby's environment smoke and vape free. Secondhand smoke in areas where a baby sleeps or spends time, like home or the car, increases the risk of health problems.