[isilofi]

There is an easy, cheap and well-tested air cleaner: wet cutting, i.e. cutting under running water. All dust will be bound in the runoff, almost no airborne particles. But it is messy (often not doable indoors, because you splatter everything with rock slurry) and just a little more expensive gear than for dry cutting. So nobody does it...

[prmoustache]

Water is increasingly becoming something we can't waste as easily as before in many parts of the world.

[hokkos]

it is a closed loop