A protective hood for individuals positioned in hazard areas is provided that comprises a constant hood structure having an opening, wherein the hood structure is configured to accommodate a portion of a bed that partially protrudes through the opening; a closing board outwardly connected to the hood structure and positioned opposite the opening; and a movable portion sleeved juxtaposed to the constant structure, wherein the movable portion is configured to move relative to the constant structure so as to elongate the constant structure from a first position in which the movable portion is fully adjacent to the constant structure and a second position in which the movable portion is extended outwardly beyond the opening so as to cling to the closing board and form a protected and secure inner space.