Add a $10 walmart box fan and a furnace filter to the box and you will get a pretty efficient spray booth (water based paint only). I find that with some of the inexpensive paints such as folk art you can use them right out of the bottle with 40#s or more pressure.
One of those large plastic tubs. Springs on each side about 6inches in. Small screw hooks on each end of the plug attached between the springs. You can turn the plug any angle ya want as ya spray.
Initially I used a cardboard box with with cheesecloth inside to catch the spray. Unfortunately a lot of the spray stays airborn and drifts out and ends up as a coating all over the shop. My current booth is a large plastic box with a hole and a fan at the back and a furnace filter in between. It works well. There is no comparison to the amount of spray that was drifting all over my shop when I used a box without the fan. I had a furnace filter alredy so my total outlay for the 10" box fan and box was under $14 at Walmart.
Hybrid Mode
