RoomMaster ABR enables premises to benefit from efficient ventilation with a minimum of installation work. Holes in the external wall for outdoor air and extract air and an earthed electrical socket for a 230 Volt 1-phase supply is all that is required for installation. RoomMaster is suitable for schools, daycare centres, offices, conference rooms, shops, foyers – waiting rooms, leisure centres, production premises, etc. The supply air has a very even outward flow within the entire flow range, and reaches around bends and into corners. No matter where you sit in the premises, you will receive a continuous supply of fresh air.