I heard about doing this before, but I finally did it, I got a fan and pointed it so it blows from behind me over my shoulder, past the work area, and towards the DC inlet...............
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..... the fan is one of them Vornado fans, it blows in a fairly tight column of air
..... and boy am I impressed about how well this works.
It really does make a difference in the amount of dust that gets left behind.
I'd really suggest this as a mod to your turning area!