One of my goals was to make the unit smaller. Given my wet scrubber design, it is easy to scale this design down. I used a 3 gallon bucket instead of a 5 gallon and shrank the hollow walled tube to fit inside.

Shrinking the hollow walled tube required using smaller containers. I used a sports bottle that was shoved into a plastic peanut butter jar to create the hollow walled tube. The inward spiraling nozzles was from a computer blower fan that I took apart and glued to the bottom of the sports bottle. I drilled many holes on the top the sports bottle for the exit holes and placed a container on top of this to form the mist eliminator. I piped the air inlet using 1 1/4" PVC pipe and some PVC fittings.

I then drilled a hole in the bucket so the hollow walled tube could be mounted to it.

That was it! It worked pretty much the same as the larger version. Here is a test: