Ceiling diffuser DEV-R is a round ventilation diffuser designed for air supply and exhaust in modern HVAC systems. Its aerodynamic form ensures quiet and uniform airflow distribution, improving indoor comfort in commercial and public spaces. Made of galvanized steel with a powder-coated finish, the DEV-R offers excellent durability and corrosion resistance. It is suitable for installation in suspended or plasterboard ceilings and recommended for ceiling heights from 2.6 to 4 meters. Ideal for offices, retail spaces, schools, and public buildings. Compatible with plenum boxes and airflow control dampers.