Working student Leon Rottmann and Obladen (right) stand at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. The Startup UVIS UV-Innovative Solutions of Obladen and Tanja Nickel developed a chemical-free disinfection for the handrails of escalators and surfaces. A module continuously irradiates them with UV light as they pass through. The rays in the UV-C spectrum kill bacteria, moulds and viruses. — AFP
Katharina Obladen tests a light module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Katharina Obladen tests a module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann tests a module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann and Katharina Obladen (L) test a module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann tests a module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann solders an electronic part at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann coats a shopping trolley for disinfection at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
A sticker 'aseptic surface' is seen at a bottle at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann tests a module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Katharina Obladen tests a light module at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann cleans a shopping trolley for disinfection at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Katharina Obladen tests a light module at the mechanic’s workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann coats a shopping trolley for disinfection at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
Working student Leon Rottmann coats a shopping trolley for disinfection at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, on April 22, 2020, amid the novel coronavirus COVID-19 pandemic. — AFP
A working student coats a shopping trolley for disinfection at the mechanic's workshop of the Startup UVIS UV-Innovative Solutions in Cologne, western Germany, amid the novel coronavirus COVID-19 pandemic. — AFP
