Freezin Fog Outdoor Low Lying Ground Fog Juice Machine Fluid - 4 Gallon Case - The Haunted House Owner's Choice for Outdoor Graveyard Fog *Best Low Lying Fog for Halloween Graveyard type effects *You must use a Fog Chiller or Ground Fog Machine with this fluid to create low lying fog. *Odorless, Non-irritating, Non-toxic, Non-flammable *Extremely Dense, Amazingly durable, Wonderful Dispersion *Froggys Fog only uses De-Ionized Water and Pharmaceutical Grade Chemicals