At a vape factory in Shenzhen, workers test up to 10,000 vapes a day, puffing on them to ensure quality and performance. This process was uncovered in a documentary by the YouTube channel Machina, which visited a factory in Baoan, a region that produces around 80% of the world’s vapes. The testing includes pressure checks and suction simulations, but the most notable method has workers inhaling from each device to assess its performance and flavor. One worker shared that he tests around 8,000 to