SMOK Vape Pen V2 User Manual & Troubleshooting Guide 2nd Hand Vape Smoke Effects E cigarettes contain hazardous substances, addictive and harmful Electronic cigarettes were originally designed as a better alternative to traditional cigarettes, but it turns out it has its own risks. Learn about e cigarette or vaping product use associated lung injury: https: wb.md 4eObEv0 A toxic, plastic problem: E cigarette waste and the environment