Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Vaping vs Smoking: How Vape Puffs Equal a Cigarette What Are the Best Vape Kits for Heavy Smokers? Heavy Smokers: Best Vapes & Liquids (UK 2025) Guide Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London To Vape or Not to Vape? St. Thomas Medical Group