Trying to finish up the shop before walls go up shortly. Wondering if any of y'all have any kind of positive pressure setup into the finiah room to ensure it stays dust free? Mine is adjacent to my DC closet, and thinking about building one additional plenum return from the DC closet into the finish room, making sure it goes thru a real fine filter before exhausting into shop. I already have one plywood multiple bend plenum return lined with accoustic foam that goes back into shop, and thought adding one into the finish room might add return capacity while also taking care of the positive pressure issue need (if in fact it'll work as planned.

Thoughts? Has anyone done something like this, or have another idea on that? TIA for any assistance all!!