This is a corner shower stall with no plumbing required.  It is used to catch the overspray, which wipes right off and always stays clean and white.  Use two adhesive hooks to hang the spray hose.

You will also need rubber gloves, masks, and safety glasses in your supplies.
The shower stall is trimmed with standard molding and painted white. You can buy optional doors also but are not really required if the technician wears a lab coat.
These are two stackable cabinets.  The one on the bottom houses the compressor, which can be noisy and unsightly.  There is a hole punched through the back to run the spray hose and power cords.
In this corner of the room there is a place for towels, lab coats, misc items, and a dirty towel hamper. There is also a stereo and fan (not pictured) but recommended.