Secondhand smoke and secondhand aerosol 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. Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Secondhand vape exposure: Risks and side effects Secondhand vape aerosol can contain particles and chemicals that may affect indoor air quality. Research continues to examine possible respiratory impacts. Secondhand smoke and secondhand aerosol