This machine is built in 4 parts. Detachabel Vacuum chamber, Troley for vacuum chamber, Control panel and vacuum pump cabinet (module). only vacuum chamber and it's trolley and contorl panel is inside the "A" class clean room. Whenever the chamber has to be sterilized it can be easyly detached from trolley without any tool and kept in a autoclave for sterilization. After completion of process both the Vacuum Cahmber and Trolley can be out of clean room