Ventilator, 92x92x25mm (1050/1250/1600 RPM, 42.9/51.1/64.6 m/h, 8.4/11.6/17.1 dBA), rotor ultrasilentios SSO2, Flow Acceleration Channels, AAO Frame (Advanced Acoustic Optimisation), Smooth Commutation Drive 2 (SCD2), include: adaptoare U.L.N.A….