Does Vaping Cause Secondhand Smoke? Is Secondhand Vape Smoke Bad for You? Baton Rouge General How secondhand smoke, thirdhand smoke & vaping affects kids Health experts say not to 'vape' around children, because the secondhand aerosol (it isn't vapor) from e cigs isn't safe for them Kentucky Health News 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.