Air filtration system my way,
1,Personal, I use p2 dust masks for pens, a Trend Airshield for bowls etc.
2,Dust collector, Duct-ed out side after I saw how much fine dust that came out of the DC bag
3, An Ionizer same as they recommend for asthma sufferers.
4,Air filter to catch all that real fine dust that would clog your lungs, I made a pre-pre filter for it as I have to go to Adelaide to buy the both filter, I don't trust Aust post to get them here undamaged..
5, Regular vacuuming the floor, If you ever try to walk through a patch of bull dust, you will see how it is imposilbe not to stir up clouds of dusts, I noticed the same when the sun is in the right angle I am in my shed every day