The utility model relates to sanitary and hygienic devices, including disinfectants, and can be used for bactericidal air disinfection using ultraviolet radiation. The technical result achieved by the claimed technical solution is to improve the operational safety of the device for air disinfection. The technical result is achieved by the fact that the device for air disinfection comprises a housing with inlet and outlet windows located on the bases of the housing on opposite sides, in which a fan is installed located in the outlet window of the housing, and an irradiation chamber with a UV radiation source in the spectral range 205 -315 nm, equipped with protective screens. In this case, the walls of the body of the device for air disinfection protrude beyond the bases of the body in such a way that depressions are formed at the ends of the device between the protruding parts of the walls of the body and the bases of the body over the entire width of the base. The device for air disinfection contains a control unit for the operation of the device and a switching device for turning on and off the device without disconnecting the power cord from the mains. At the same time, on the body of the device for air disinfection, there are elements for fixing the device to a wall or stand. The entrance and exit windows of the housing can be equipped with protective grilles. At the same time, from the available prior art, it is obvious that the protective grilles can be made as one piece with the body, or separately, as independent structural elements of the device for air disinfection, installed on the inlet and outlet windows. In some embodiments, the inner surface of the air disinfection device body can be coated with a UV reflective coating. In turn, the outer surface of the body of the device for air disinfection can be additionally made with an antibacterial coating that prevents adhesion, reproduction and spread of microorganisms on the outer surface of the body. In thi