A mind evaporator, also known as a proton chair was a device used to stimulate the mind. It could either be used for serious or entertainment purposes.
The machine consisted of a large chair that the participant would sit in and a helmet attached to the chair that would cover the subject's eyes. A cassette could then be inserted in order to begin the program, and the user would enter virtual reality. The mind evaporator was powered by a proton pack.
Attichitcuk was known to have used the device to aid in training for flight of the Oevvaor jet catamaran during the Clone Wars. Utilizing its virtual-reality capabilities, he was able to hone his skills in order to participate in battle at his advanced age. This training proved useful at the Battle of Kashyyyk.
He also used the device as entertainment. He viewed holograms of Human girls singing and dancing on the machine. One such girl he viewed was Mermeia in 1 ABY.