I have a 20x50 workshop. My "sawroom" is 20x20 and my tools are connected to a Jet Vortex Dc1100 RCK (has canister and Vortex) .

I have doors i try to keep closed to prevent fine dust from heading into the other part of the shop when sawing.

If i purchased one of those fancy hang from the ceiling air purifiers would that help prevent the fine dust from settling allover the "sawroom"?

I have been doing a lil research and am i correct in reading i need to have one that exchanges the air every 10 mins or something like that?

And finally recommendations of those fancy lil guys that hang from the ceiling? I see lots of them at my Rockler store....ie Jet Rikon, etc...