CHAUVET fluids are designed and tested to provide exceptional output from CHAUVET fog, snow, and bubble machines. Play it safe and get maximum output by trusting CHAUVET fluids.This high density fog is a water based fog machine juice formulated to create optimum low lying fog effects for outdoor graveyard scenes. It is super thick, formulated to hang in the air and create perfect graveyard halloween low hanging ground fog. You may need to use a Fog Chilling Device to create some outdoor low lying fog effects! All Chauvet fog juice and Haze Fluids are made from high grade UV-Filtered deionized water and high grade chemicals. The use of other, inferior products can cause irreparable damage to your machine.