Being smart about your vape starts with knowing the facts and understanding how to keep yourself and others safe. You should always: Unplug your vape once it's fully charged Recycle Vape Safe: Prevent E Cigarette Fires! Did you know that e cigarette batteries can overheat and cause fires if not handled properly? Stay safe with these tips: Use the right charger Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health.