Secondhand smoke and secondhand aerosol Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking Can I be Affected by Secondhand Vape Smoke? E Cigs and Second Hand Vaping: Dangers and Protections Vape Smoke 220w Risk From Second Hand Smoke On Children Greater Than Previously Thought Second Hand Smoking From Vaping