Lighting designers and event coordinators looking for premium-quality fog and haze fluid will be impressed with the clear-formula Antari FLH-4 Heavy-Density & Long Hang Time Fog Fluid. Available in 1.06 gallons, this fluid is designed for all water-based Antari fog machines and most other fog machines when dense, long-lasting fog is desired. This fluid is an odorless, nonirritating, nontoxic, and nonflammable water-based composition that leaves no oily residue. All the ingredients are FDA approved.