This abandoned section of the underground habitat once housed the laboratory where the Institute tried to unlock the secrets of the FEV. Although the program has failed to produce any results for over a decade, Father insisted on continuing the project until Brian Virgil sabotaged it.
Accessed through a Novice-locked door off the main area of the BioScience division laboratory, the player character begins in a foyer leading to an airlock with a dead synth. The corridor beyond is protected by a pair of laser turrets and leads through an Advanced-level door into a storeroom where an Assaultron lurks.
Beyond is the FEV lab proper, starting with test-subject observation chambers (and more turrets) and a small entrance area to the incubation chamber. The incubation chamber has three tubes where super mutants would be held for experimentation. This section can also be accessed by using the Master-locked FEV lab entry terminal on the northern wall of the main BioScience laboratory.
- Brian Virgil personal log 0176 - On the table next to Virgil's terminal.
- Experimental serum - In a machine on the southern wall of the incubation chamber.
- FEV research notes - In the room with the super mutant vats, on consoles.
This laboratory itself is architecturally built of the same pre-War, modern steel construction. A stark contrast to the post-modern science fiction styling that the Institute proper has standardized. In fact, a section of this ancient construction is still accessible from BioScience proper. Albeit the door to the rest of the facility is blocked off by broken filing cabinets. However, the FEV lab itself is of the same modern architecture of the Institute proper.
The FEV lab appears only in Fallout 4.