UR Fog's white out anti-intrusion fluid for refilling the AJAX ready modular fogging units. The white out fluid has been specifically designed to generate a wall of dense fog in seconds. Optimised to produce the densest and highest persistence fog, ensuring zero visibility for would-be intruders. UR fog is completely non-toxic, flavourless and leaves no residue. Optional food grade white out fluid is available - contact us for further details.