An updated version of the classic vertical fog machine. New technology allows a dual colour column of smoke. Patented "Immediate-Stop" and "Anti-Squirt" technology stops puffs of smoke and un-vaporized fog liquid leaking from the nozzle after the machine has been stopped. This machine can be used horizontally for a vertical column of smoke, on it's side for a horizontal column of smoke, or even upside down and spray a column of smoke straight down. Used together with DJPower's quick dissipating fog fluid, the same effect as a CO2 jet can be achieved without filling the room with smoke.