The Peoplebusters' Packs are packs used by the Peoplebusters. It is a see-through cylindrical tank filled with green ectoplasm and eyeballs. When in use, the pack glows. There are at least three working packs and are stored in the same room as their Containment Unit.
The Peoplebusters donned their packs after being woken by the Ghostbusters and pursued them throughout Boo York. Even in the Containment Unit universe, the Peoplebusters' packs still work as normal but are no match for Proton Streams power wise.