Study: Some vapes release more lead than 20 packs of cigarettes YouTube E Cigarettes: Know the Health Risks Department of Health You've seen the device. But do you know what's actually inside it? Every disposable vape has 4 components and each one comes with real risks: Nicotine e liquid: toxic chemicals, including lead Amazon.com: Four Candies 2.6MM Color Lead, Mechanical Colored Pencils Leads, 36 Color Pencils Refills, Assorted Colored Leads 72 PCS : Office Products Disposable vapes spew toxic metals at higher levels than cigarettes, study finds