Helios stands for ventilation technology of the highest quality for every application: from compact small fans on ventilation systems with and without heat recovery to complex solutions for industrial and commercial applications. Large fans with flow rates up to 2.2 million m³ / h and solutions for building services complete the range. Part of the product philosophy is intuitive user interfaces for an easy use. This includes the integration of Helios ventilation systems in building control systems using KNX application modules to further maximize comfort. Helios is one of the leading manufacturers of ventilation equipment. Next to the headquarters in Villingen-Schwenningen, the company operates nationwide with approximately 25 sales offices in Germany and with offices and subsidiaries in over 20 countries in Europe.