I'm building out a small public makerspace and would like to add a ventilated painting and staining booth. I'm expecting the size to be about 12 cubic feet (4' x 3' x 1'). There will not be spray guns, only stains and regular spray paint. The average surface area painted will be less than a sheet of paper, often less than a golf ball.
The opening will be about 3' x 1'.
I've read that one is supposed to have:
"100 CFM per linear foot of hood width for spray painting operations"
This is re-iterated in this question: How many CFM for a range hood do I REALLY need?
This seems excessive for the usage I'm planning. Every other resource I found on calculating CFM was focused on much larger projects with the intention of spraying (or cooking) constantly.
How can I figure out the CFM needed for something like this? Around what range should I expect?
EDIT: Most pop-up spray booths on Amazon are showing ~110 CFM in their specs https://www.amazon.com/s?k=spray%2Bbooth
