Puff Bar is a U.S.-based disposable e-cigarette brand launched in early 2019 by Cool Clouds Distribution Inc. While it did not invent the disposable format, Puff Bar propelled it into the global mainstream. Seizing the vacuum left by JUUL amid flavor bans, it rapidly rose to dominate the U.S. disposable market with an estimated 80% share, becoming one of the world’s top-selling disposable brands. However, its aggressive marketing targeting minors and exploitation of regulatory loopholes to evade scrutiny drew intense crackdowns from the U.S. Food and Drug Administration (FDA). The brand was ultimately forced to pivot by adopting synthetic nicotine technology. Today, Puff Bar stands as the quintessential case study of the "asset-light model plus regulatory arbitrage" strategy within the vaping industry.