Armored doors TYPE TP -1,2,4 and emergency hatches Type PD concreted from the Swiss company LUNOR are mounted to the walls, constituting an integral part of a shelter's casing. They provide optimal protection against blast waves, radiation, heat waves, blast debris (nuclear and conventional), radioactive radiation and toxic fumes, and ensure that entrances and exits to shelters and bunkers are free of weak points.
An exemplary set of doors for a shelter, type PT-1, and for an emergency exit, type PD.