I grew up in a household where the vacuum cleaner was a Rexair (now Rainbow) which removes the dust from the air using a wet filtration system. It was very effective at removing dust and it didn't clog up. Has anyone seen a small shop dust filtration system that works on this principle? I can see a downside, all the dust (sawdust and chips) would end up suspended in water. Could this be composted? Perhaps there are air volume considerations inherent in the technology in its simplest form? Perhaps knocking most of the dust out with a cyclone would make it more workable.