Ventilator, 80x80x25mm (1750-2200 RPM, 43.9-55.5 m/h, 13.8-17.7 dBA), rotor ultrasilentios SSO2, Flow Acceleration Channels, AAO Frame (Advanced Acoustic Optimisation), sistem unic pentru PWM de tip NE-FD1 PWM IC, Smooth Commutation Drive 2…