A surgical mask is used inside the operating room or during other sterile procedure areas to protect the patient environment from contamination. Surgical masks have ties so that they can be adjusted for fit, and are tied over the top of a surgical or bouffant cap.
rockfall. 1  an act or instance of the falling of rock, as in a cave-in or an avalanche. 2  a mass of rocks that have fallen: to be trapped under a rockfall.
A mudslide, sometimes called a âdebris flowâ, is a landslide with a high water content. Mudslides act like a river that, if the mud is thick, has the consistency of wet concrete. Mud, rocks, trees, and other large objects are carried along and can cause homes to collapse and a huge amount of traumatic injury to residents.