https://itp-gmbh.de/wp-content/uploads/2025/01/EFRE-Plakat-2024-VFE-0021-3-pdf.jpg14972117fk_adm21https://itp-gmbh.de/wp-content/uploads/2021/12/itp-300x138.pngfk_adm212025-01-27 12:18:572025-01-27 15:41:25Development of a sustainable UVC disinfection for air and ventilation systems