Parents: Teens Are Still Vaping, Despite Flavor Ban. Here's What They're Using South Carolina Public Radio Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Disposable vapes, which make up the majority of e cigarette sales in the US, are a significant pollution concern as nearly half a million vapes are thrown away every day. It comes as Rechargeable Vapes vs. Disposable: What Are the Differences?