Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Symptoms Of Second hand Vape Smoke 2nd Hand Vape Smoke Side Effects Health experts say not News Is Second Hand Vape Smoke Harmful? Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine According to a Centers for Disease Control and Prevention (CDC) study, 40% of U.S. adults believe that children's exposure to secondhand aerosol from e cigarettes causes only some or little harm, and 5% Secondhand vape exposure detectable in children's saliva, breath Contemporary Pediatrics