E cigarettes get a bad rap but scientists say they can be really helpful in 2 ways AOL When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to The risks of first hand and second hand vaping Eoleaf Can You Get Secondhand Smoke from Vaping? ZOFO E Cigarettes: Is Vaping Bad for Your Teeth? Delta Dental Of Washington POV: You thought it was just water vapor. Secondhand vape aerosol actually contains: Nicotine (yep, it lingers) Formaldehyde (carcinogen) Heavy metals (nickel, lead, tin) Ultra fine particles