The room has probably been used for anointment of the bathers with perfumed oil after the hot baths.
The mosaic in the room show in the upper part a person being anointed by slaves while other slaves in the lower part carry the utensils for the ointment of the bathers. Two of the slaves below appear to be named Titus and Cassius.
This mosaic has been damaged in antiquity as there are clearly visible repairs from the byzantine period. The repairs are of a notable lower quality than the original work.
Photo gallery for "Anointment room"
There are 3 photos in this gallery.