Have others notice that reviews from Scott Burt of TopCoatreviews spraying in their shop, hardly anything is covered! I hope he reads this and chimes in.
I've noticed that guy around.
Its important to define, at least in my usage habits, what "paint dust" refers to. In a spray environment, you can sand with Festool and not be creating enough dust to cause a problem when you turn around to spray.
The real dust that happens is from the overspray created during spraying. Those fine airborne particles, if not exhausted, will dry in the air before they land and settle as dust. For practical purposes, it is most important that they not land in what is wet. We do dry in the same room that we spray in. It is almost 800 sf. I'll preface it by saying that we are control freaks in our shop.
Our approach is to use high transfer efficiency sprayers and guns, select tip size properly (major contributor to overspray dust), use proper technique (major contributor), ventilate the space during spraying, isolate items for drying upwind of spray, air out the room quickly upon completion, monitor product for tack up, and then heat promptly upon lay down.
Thats a lot to throw out there, so feel free to post up any questions.
I have been spraying in the same room for 15 years. And not had to repaint it yet. By way of example, in January, we sprayed over 6000 lf of product in exterior solid brown stain (total ext package for a barn). That was almost 60 gallons. The room is not brown now. In fact, the built in wall unit that our exhaust fan is located in is made out of clear pine, and still looks like clear pine even though it is directly in the exhaust direction.