E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? YouTube 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. Breathing in someone else's smoke or vape isn't harmless. Secondhand smoke exposure can affect your lungs, brain, and overall health. Protect your families and yourself. Inhalar el humo o el vapor de Secondhand vape exposure: Risks and side effects