A spray booth is an extracted cabinet that you paint inside instead of into the open room. A fan draws the air through a filter and vents it down a hose, so the paint mist does not settle on the furniture or hang around the room afterwards. The range covers folding booths sized for modelling work along with replacement filters. If your bench is in a room that is also a living room, a booth is the quickest way to separate spraying from the rest of the space, and the simplest way to stop an argument about it.
A booth handles what misses the model: dispersed paint and the smell of thinner. Working distances inside are short, so a stand or a clip for the part earns its place. It is equipment for airbrush work and it is not sufficient on its own — with solvent paints and varnishes you still need a respirator and ventilation. Filters clog over time. Thinning is handled by thinners and cleaners, the air supply by compressors.