A "Ghost Trap" is a fictional device from the Ghostbusters franchise, designed to capture and contain ghosts. It resembles a small, portable vacuum and uses advanced technology to trap supernatural entities. Once a ghost is captured, it is stored in the trap until it can be safely transported away. In the Ghostbusters movies and animated series, the Ghost Trap is an essential tool for the ghost-hunting team. The device is often used in conjunction with other equipment, such as the Proton Pack, to effectively deal with paranormal threats and maintain public safety.