1.quiet motor, high quality setting 2.over-heat protection,safety 3.elegant chic,good performace 4. reliable,durable solid model standard power frequency watts flow rate speed noise mm v Hz w m3/min r/min db(A)FB40 400 220 50 50 110 1200 40 FB45 450 220 50 80 121 1200 43Blade:ABS blade /Iron bladeNet:normal netMotor:copper motorCertificate:CE ROHS CCC