A device for mitigating debris travel including a debris barrier, a support-frame, and a ceiling-attachment. The debris barrier includes a ceiling-opening-interface, a closeable-user-opening, an inside-surface, and an outside surface. The support-frame is fixed to the ceiling-opening-interface of the debris barrier. The support-frame is configured to hold open the ceiling-opening-interface, and further configured to hangingly support the debris barrier. The ceiling-attachment is fixed to the support-frame. The ceiling-attachment is configured to couple with a drop-ceiling, and the support-frame is shaped to seal against the support-frame.