Symptoms Of Second Hand Vape Smoke Secondhand smoke is harmful to those around you, putting them The health risks of secondhand smoke are widely understood. But what about secondhand vaping? 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. Juul study shows secondhand vaping emissions are less toxic than cigarette smoke