In color theory, a purple is defined as any non-spectral color between violet and red (excluding violet and red themselves). The spectral colors violet and indigo are not purples according to color theory but they are purples according to common English usage since they are between red and blue.
Dry ice fog is a thick, dense, low-lying fog created exactly the way fog in nature is. created, by condensing water vapor out of the atmosphere. We use dry ice (the. solid form of carbon dioxide) to condense the water vapor out of the air. Dry ice. fog contains no chemicals, glycols, or oils, and is truly a water based fog.
Liquid Carbon Dioxide (CO2) is the source of all dry ice products. The liquid is stored at 20 bar and around -20C. It is released through a nozzle to 1 bar at which point dry ice snow is created. This snow is compressed and extruded at around 1500 psi to form pellets and blocks of dry ice..