Do Juul Pods Have Diacetyl FDA warns Juul, says it marketed vapes as less harmful than JUUL Lawsuit & Case Lawyers Addiction & Health Effects Stoy Law Group, PLLC. Tobacco Tuesday Tip One Juul pod = 20 cigs. Some vapes = over 200. That's a lot of nicotine. Think before you puff. This school year, let's stand together with the DYK? Vaping coats lungs with potentially harmful chemicals. This can include chemicals such as: Diacetyl: This food additive, used to deepen e cigarette flavors, is known to damage small passageways in the lungs. JUUL Is Unsafe. We Want You to Know Why.