LUNOS Lüftungstechnik GmbH für Raumluftsysteme is a Berlin-based company and market leader for decentralised home ventilation systems. The company was founded in 1959 and is still based in Berlin-Spandau. In 2019, a second location was opened in Brandenburg, thus creating even more expansion opportunities for the company, which produces its products Made in Germany and sells them in over 35 countries worldwide. The core competencies of LUNOS lie in decentralised controlled home ventilation with and without heat recovery, as well as in the development and manufacture of energy-efficient fans and external wall diffusers. LUNOS also develops all associated components and many other products.