High End Systems Atmospheres HQ Formula High Density Water Based Fog Fluid, Two 2.5 gal BottlesThe original high quality formula, Atmospheres HQ from High End Systems provides an initially dense white cloud which gradually disperses into a long lasting fine mist. Used primarily as a lighting enhancement medium, HQ is capable of producing immense volumes making it the ideal formulation for large venues. Atmospheres HQ Formula (Item Number 05040002) provides a quality, hygienically safe interface medium for most any application. The applicable