It shouldn't be a single room, but a complex of rooms.
Exam Room:
One exam room, with white tiled floor, the walls tiled at half the hight, red or pale green stripe along the wall the rest painted in this grayisch-yellow off white.
Windows are either blurred or it is an subterran facility anyways. Light comes from cold strip lights. One wall is covered in a large mirror (it's a one-way mirror, connected to the supervisors room)
Walls decorated with anatomical pictures, maybe with ads for different therapies and procedures you never have heard of.
Some shelves and glass doored closets containing 'typical' med-stuff, gloves, desinfection-fluid, catheter hoses and other medical tools, but also plugs and dildos in black rubber or polished stainless steel. There is one desk with a computer on top.
This room has a black cushioned Gynaecological / Urological chair, with stirrups and attached cuffs and straps (prefered from silicone or as medical restraints).
In the background there is an assortment of larger medical equipment, like one of those electro-therapy units with the grey rubber suction contacts, an Ultra-sound unit, especially with vaginal / anal probes (or probes you can misuse for this anyway) and a medical grade vacuum unit.
Toilet/Showers
A tiled room containing shower faucets on one wall, some sturdy rings and hooks in the middle of the room as a thick hose for
cleaning more resiliant patients. One corner contains a brushed steel toilet. Nearby are taps and anal-cleaning equipment.
Masturbation-Therapy-Room
This is a small chamber, just large enough to hold one bench, or a chair, Door is behind the chair and it faces towards a large one-way mirror, connected to the supervisors room. The rest of the floor and the lower half of the walls are tiled in white, The rest painted in a light colour.
There is a IV-stand holding an enema-bag, with a relatively large nozzle, with a seperate inlet and outlet (so you don't need to remove the plug - as said, it's a fantasy). This is used to admister some orgasm-preventing substance (again fantasy). Then there is a gas-mask connected to a small anesthesia machine (not for knocking you out, but to admister some kind of aphrotisiac)
Depending on the patients sex, it is equipped with a fucking-machine and/or a milking-machine (the likes of a SeriousKit).
Last item is a video screen in front of the chair, showing either other patients in the same treatment as you, or other kinds of selected education program.
This room is for long-term therapies.
Group Therapy Room:
The Group Therapy room, is basically like the Masturbation Therapy Room but wiht three chairs, so patients can enjoy each other as added stimulans.
Station Room:
At last we have the sleeping station. Three clinic beds, restraints, either of silicone/latex or brown/white clinical restraints, bedpans and urinals, either normal white cotton, or rubber / silicone sheets and cushions.
All rooms are equiped with cameras and / or chairs for observers
(Might it be, that I have a thing for exhibitionism?...)
Generally aprons and scrubs are stored away in a closet. The rooms shouldn't look cramped or stuffed.