This portable fog-master is great for bands, DJs, clubs or anyone else who wants a reliably affordable fogger. Simple to use - just fill the machine with fog fluid, plug into a wall outlet and wait for the Ready Light. When the light is lit, push button for a burst of fog as needed. Creates a smoky atmosphere to enhance any light show. Fuel tank scale allows the fluid level to be seen clearly, while its water-based components won't leave any residue.