I have also (mostly) finished the paint booth. It's not something I will use frequently however I have more than enough room in my garage for it and it's very useful when I do use it, not to mention preventing any overspray on everything else in the garage. I did all the proper calculations to size the filter areas and fan size, as the booth I had at my old house always had an issue with not enough air flow.
I took advantage of an error that the grano made when pouring the slab and decided to use the 20mm gap between the slab & wall sheets as an exit point for the outlet. Two manifolds later and I had this (with the fan between them)
I clad the booth inside & out in 3mm MDF and painted it the same colour as the workbench. The roof is 6mm braceboard so I can store miscellaneous items on top (dashboards, door trims, timber sheets)
The booth is a cross-draft design with four filters across the width of the whole booth. This is the interior (note I have not built the bench inside yet) showing the exhaust manifold and the 200mm duct opening leading to the fan.
On the exterior, I have some compressed air fittings. The compressor will be located inside the booth with an flexible air line running from the compressor to the RHS of these fittings. Air will travel through the filter/regulator and then either travel down the LHS of the fittings back into the pant booth (for paint gun), or out to the air lines that run around the perimeter of the entire workshop. The switch next to the door will be for turning on the interior light, fan & compressor without having to enter the booth. I also have a small ball valve (red handle) in these fittings to purge the system of air when I've turned the compressor off. The fan on the left is a 635CFM/474CFM (high speed/low speed) axial fan.
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-Alan
I blame my dad for my love of minis. I think I was conceived in the back seat of one
I also blame my Dad for me being 6' 1" - not really the optimum height for driving a Mini.