FIELD: safety.SUBSTANCE: invention relates to protective devices used in explosive and radioactive facilities, such as blast-relief panels and roofs, blast resistant fences and dampers, excess pressure valves. Blast resistant panel with an additional damping element contains a metal armored frame with metal armored lining and filler - lead, has four fixed support nozzles in ends, four support rods rigidly fixed in the cover of the explosion hazardous facility, telescopically inserted into fixed support nozzles of the panel. Filler is made in the form of an air-lead disperse system, the lead being crumb-shaped, and on the outside of the support rods there are elastic-damping elements, one end of which rests against an armored metal lining, and the other - in the stopping sheets located in the upper part of the support rods. Elastic-damping elements are made in the form of a damping plate, to which an additional resilient damping element is attached, placed between the damping plate and the blast resistant panel, and which is made in the form of a buffer device in the form of a cone coaxial with the axis of the panel and the opening of the protected facility, the top of which is directed towards the opening of the protected facility. Between the damping plate with the buffer device there is an additional damping element located, made in the form of a spring, the turns of which are covered with a vibration damping material, for example, polyurethane. Between the damping plate with the buffer device and the blast resistant panel there is an additional damping element, made in the form of a conical spring, the larger base of which is located on the conical surface of the buffer device, and the turns of which are covered with a vibration damping material, for example polyurethane.EFFECT: technical result - increased reliability of explosion-protection devices in case of an explosion at the site and providing the return of these structures into their initial positions after the explosion.1 cl, 2 dwg