The CleanAir project relates to the application of an innovative and novel geometrically extended electrode design to be integrated in air ionizers. This innovative electrode design has already been pre-tested successfully for efficient electrostatic disinfection and particle removal from air. Contrary to other air ionizers available on the market it does not produce any harmful substances such as ozone or NOx because corona discharges will not occur. As a further innovative step, the electrode can be manufactured in different and much larger sizes and various 3D geometries to make them suitable to different needs from the medical end consumers for mounting them in examination and treatment rooms. The final product will be easily adaptable to be used efficiently in rooms of different sizes and heights. The aim of the CleanAir project is to develop this technology to a market-ready and CE mark certified device for series production for protecting health practitioners and their patients against COVID-19 infections. Market ready devices for three application areas will be preferentially developed in the project: for dental treatment rooms, for medical doctors offices and for patients rooms in a hospital. The project will prepare all required documentation, marketing information, customer portfolio and a sales and detailed business plan for being ready after the end of the project to start the series production and commercialization phase.