If one were to add the Cyclone Lid attachment in the vacuum line, then there is little particulate material to worry about. There will be some, but nothing like what can be had from a system with a clogged vacuum filter.
Go to http://www.woodcraft.com/family.aspx?familyid=4310 Cyclone Lid link at Woodcraft and read about the attachment. The device from Woodcraft fits a METAL 30 gallon trash can (avail. Home Depot for about $32). The plastic cans DO NOT WORK as they can collapse from the vacuum pressure and also, the top doesn't seal as efficently since it doesn't fit the plastic rim.
I recently added a system available from Loc-Line - http://www.modularhose.com/ - onto my drill press table AND under the lathe ways where the pick-up can be turned to be directly under my turning tool(s). The retaining clip is mounted to the tool bar and the entire setup travels with the tool rest when I move it. Now I have reduced my generation of fine dust and shavings to almost zero. The clean-up is immediate and I am operating a very clean shop with little to almost zero dust. There will always be some, but it is nothing like it has been being.
I simply run the Loc-Line to the cyclone and then on out to the vacuum cleaner. The shop vacuum filter stays amazingly clean and is now less prone to damage from being "hit" by a chunk of debris, and the filter stays 99% cleaner. I empty the cyclone trash 10 times more than the vacuum cleaner.
If you go to Loc-Line site, pick the 2.5 system as I believe it is far easier to install and use than the smaller items offered. They also offer a fitting that accepts the vacuum line directly from their system and that makes set-up so much easier. If anyone gets confused looking at the Loc-Line setup on their site just e-mail me and I'll be glad to help you out. It can be confusing if you have never looked at these things in person.
I highly recommed the addition of both these items to anyone's vacuum system. Ask around and see if anyone you know is using either, or both, of these additions and by all means go look at the difference they offer us wood turners.
BTW, I'm in Tucker, GA out near Stone Mountain if anyone wants to see my set-up. One day when I get the use of my arm and hand back I'll take pictures. A picture essay would be so much easier for me than all this typing. [

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