Fire and Rescue Fog Smoke Fluid Juice - Gallon Extreme Long Lasting Fog Fluid - Water Based Fog Juice The closest to "Real Smoke" in Simulated Environments Odorless, Non-irritating, Non-toxic, Non-flammable Extremely Dense, Amazingly Durable, Wonderful Dispersion Froggys Fog only uses De-Ionized Water and Pharmaceutical Grade Chemicals