How to Clean Fog Machines

Fog machines are great for Halloween parties, special theatrical effects, DJ lighting and more. Fluid-type machines use heat to vaporize a special liquid -- often called fog fluid -- producing a nontoxic smokelike vapor. On occasion, fog machines will clog and need to be cleaned. Every type of fog machine is different, and some require special cleaning by a professional, but many fluid-type units can easily be cleaned at home with a few simple steps.

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Step 1

Unplug the machine and let it cool completely.

(Image: Michele Lee/Demand Media)

Step 2

Empty the fog fluid tank.

(Image: Michele Lee/Demand Media)

Step 3

Fill the tank halfway with white vinegar. Plug in the machine and let it warm up to operating temperature.

Step 4

Run the fog machine for several minutes so that the vinegar circulates through the fluid line and the machine delivers a vinegar mist. Be careful; the vinegar vapor may be very hot.

Step 5

Turn off and unplug the machine, and let it cool down. Empty any remaining vinegar from the fluid tank.

Step 6

Fill the tank with new fog fluid, then plug in and test the machine to make sure it works properly.


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