This habitat is technically a huge diving bell for saturation diving. Divers go on exkursions and return to their habitat where they are subjected to ambient pressure. After the mission is over, the entire habitat is refloated and doubles as a pressure chamber for decompression.
As seen the habitat is not entirely self-sufficient-apart from a number of scientific packages the habitat was linked to a utility buoy which housed generators and compressors. A number of surface vessels provided support