four driver circuits 34 are used two driver circuits 34 are mounted on a top side of the heatsink 32 while the remaining two driver circuits 34 are mounted on a bottom side of the heatsink 32 through their corresponding driver circuit heatsinks 35 the heatsink 32 is preferably made of extruded aluminum the heatsink 32 in turn is mounted either to the bottom end of the housing 12 or a bottom end 43 of the container 42 the air drawn from the vent 30 by the fan 26 cools the heatsink 32 and the driver circuit heatsinks 35 the transducers 36 are for example part number hv0604 manufactured by stolz of north america inc the transducer driver circuits 34 are for example part number hv0610 also manufactured by stolz of north america inc referring to fig5 a lid 52 caps the container 42 a lip 53 surrounds the perimeter of the lid 52 the lip 53 allows the lid 52 to rest on the top end 45 of the container 42 the lid includes openings 50 that allow fog generated inside of the container 42 to escape the lid 52 includes a labyrinth seal 54 that prevents the water contained in container 42 from running out of the barrel 56 fig1 3 or back into the container 42 when the fog generator 10 is not held in a horizontal position referring to fig1 3 the barrel 56 is positioned on the top end of the fog generator 10 the barrel 56 includes a condensate trap 58 to keep water condensed inside from dripping out the barrel 56 the condensate trap 58 is.