Antari FLG-20 Long-Lasting Fog Fluid for Antari Fog Machines 20L (Green Formula)The green formula FLG 20 Long Lasting Fog Fluid from Antari, in 5. 3 gallons, is designed for all water based Antari fog machines and most other fog machines when a long lasting fog is desired. This fluid is an odorless, non irritating, non toxic, and non flammable water based composition that leaves no oily residue. All the ingredients are FDA approved.