After you zap ’em and cap ’em it’s time to trap ’em.
Muon Ghost Trap; 1984 Mk 2.5
The Muon Ghost Trap, or just Trap is a sealed container that allows the Ghostbusters to transport the spirits to the Containment Unit, where they would be released into the grid. Once a trap has captured a ghost and has closed, it cannot be re-opened without releasing the ghost contained within. For this reason, the Ghostbusters must each carry several traps. When a captured ghost is put into the Containment Unit, the entity is pumped out of the trap cartridge so it can be used again.
Ecto Containment Unit; 2009 GBNJ Mk3
The Containment Unit (also known as as the Ecto-Containment System, Storage Facility or Protection Grid) is located in the basement of GBNJ’s headquarters. It is a large, laser-confinement grid that holds and restrains all the vapors and entities that the Ghostbusters trap.