The Puff Bar is a tiny disposable pre-filled vape containing smooth salt nicotine e-liquid. More than 58 million e-cigarette products were sold in the U.S. (not including those sold in vape shops or online) in 2015, 19.2 million of which were disposable e-cigarettes. A 2014 study found that none of the surveyed e-cigarette packages contained disposal instructions. Last year […]