With the RETROFITBLUE concept, we replace old equipment, no matter where, with highly efficient blue technology and make your operation future-proof, much more productive and many times more favorable in your operating cost billing. Renovation measures that have already been implemented show that energy cost savings of up to 70% are possible with integral optimization. Thanks to exact, project-related planning, the optimization measures are carried out with little effort - usually even during ongoing operation. ZIEHL-ABEGG covers the entire spectrum of ventilation technology, control technology and drive technology. All components used are perfectly matched to each other and enable efficient system solutions for air handling systems and much more. Fan replacement is particularly attractive because it is supported by public subsidies. Our experts know the answers to these questions and will support you.