The PK125-Temp is equipped with an ebmpapst RadiCal radial motor impeller with backward curved Blades, the new standard in air and air conditioning technology from Germany. Radical are both the noise minimization and the further reduction of energy consumption. The globally patented RadiCal impeller with its aerodynamically optimized shape enables further Noise reduction by almost 4dB and reduces power consumption by up to 15%. The two housing shells are made entirely of extremely impact-resistant and durable polyamide (nylon). The Connections, the capacitor and the control technology are completely integrated in the housing. With the help of the The fan can be easily mounted in any axial position using the supplied mounting material become. Prima Klima tube fans are ideally suited for use in the medium pressure range and This makes them ideal for use on the suction side in conjunction with activated carbon basket filters. The quietest duct fans on the market worldwide.