Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times What is a Juul? It's a trend parents need to know about Next Generation Vaping Pod Systems : JUUL 2 The patented nicotine salt content in one 5% JUUL pod is equivalent to the nicotine in a pack (to 1.5 packs) of cigarettes. Yet, because the JUUL looks like a computer flash drive,