The health risks of secondhand smoke are widely understood. But what about secondhand vaping? Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA 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. HEALTH Does vaping cause secondhand smoke? Doctors explain the side effects: Details below. Can you get second hand smoke from a vape? Understanding Secondhand Vape Smoke Eliquidstop