AHU 400H Ceiling left and right variant have a capacity of ca. 300 m³ / h and are suitable for flats / houses and small houses. The models are based on the best present-day technologythat results in an energy efficiency and to low sound levels. A very user-friendly controlling system and an appeal- ing design. AHU 300 ceiling is built for ceiling mounting, alternatively wall mounting. AHU- units are of course designed to cope with the requirements of current regulations. In addition, they also comply with the requirements for a passive house.