The centre of the device. the lamp has a dome covered with a reflective, protective coating. three metal carriers were placed at the maximum distance from the uv-c lamp in three different positions and tested at 30 and 60 seconds 3 times. the carriers were inoculated with 100 m l of sars-cov-2 viral suspension with a concentration of 106.5 tcid50 /ml. after treatment, laboratory procedures were used to transfer the treated virus from carriers to multiwell plates. the samples were compared with positive controls (not exposed to uv-c light) after incubation, at 37 c in 5% coo ˜ in a humidified atmosphere, for 3 days. the residual viral activity was tested by assessing the 50% infectious dose per tissue culture (tcid50%). results: tests performed at 30 seconds of uv-c irradiation show an average viral reduction of 4.0 log10 (99.99%). all three tests performed at 60 seconds reached the maximum measurable log10 viral reduction: 5.0 log10 (99.999%). conclusions: the study assessed effectiveness of device in significantly reducing the viral load on all carriers regardless exposure time and distance from the uv-c light source, with no impact on the level of environmental pollution. key messages: uv-c light has the property of inactivating viral growth; its physical approach is considered a good compromise between cost and effectiveness. the device was effective in disinfecting all small everyday objects tested