Designers Select Velocity Fog Juice - For some applications such as film or photography, a faster dissipating fog is the right choice. Velocity fast dissipating fog is the designer's choice when a less dense scene is required. All Designer Select (DS) Water Based Fluids are made from lab-grade UV-Filtered de-ionized water and pharmaceutical grade chemicals, each approved by the FDA. DS Fluids contain no glycerol/glycerin and all DS Fluids adhere to the strict specific gravity and density requirements of major fog and haze machine manufactures. Froggys Fog puts the best chemicals so you get the best results from your machine. You can rest assured that each of the fluids in the Designers Select line from Froggys Fog has been designed with the longevity of your fog and haze machine in mind.