On this episode of VICE INTL, we head to Shenzhen, China, the industrial metropolis that produces more e-cigarettes than anywhere else on the planet. Though the city is exporting an inordinate number of vapes, Shenzhen’s residents have been slow to pick up the habit themselves.

VICE took a tour of Shenzhen’s smoke shops, stopped by an e-cig expo, and toured a vape factory to figure out how the city’s residents are warming up to the new phenomenon—and what the industry’s rapid growth means for them.