FIELD: devices for protection of rooms against action of negative radiations accompanying the operation of electric, energy devices, geopathogenic zones arising on fractures of the earth's crust, or as a result of passage of underground waters, or arrangement of electricity supply networks and cables; the device may be used in medicine in creation of hospital wards protected against negative radiations. SUBSTANCE: device has a dielectric backing, installed on which are not more than 10 geometric figures in the form of many-prong stars made of conducting material, at least one angle of each figure is directed to the angle of the adjacent figure. In addition it has dielectric backings with similar geometric figures, each backing additionally carries two flat conducting rings of a different size enveloping the geometric figures, and each geometric figure is made volumetric, whose cavity is filled with magnetic material with a specific gravity exceeding that of the material of which the figure is made, the quantity of the backings is selected even, not less than four and not more than eight. The backing with the figures may be covered with a protective film of varnish, with a layer of porous material with a low specific gravity applied over it. EFFECT: enhanced efficiency of action. 2 cl, 2 dwg
