Can vaping cause cancer? The evidence suggests it might. The Washington Post Is Vaping Worse Than Smoking Cigarettes? Get the Facts Not Just Water Vapor Healthy UC Davis Marijuana and Your Lungs: Is Vaping Safe for People with COPD? Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN The Alarming Surge of Fentanyl Laced Vapes: A Lethal PharmChek