Sound attenuation possibilities in ventilation and air conditioning systems Möglichkeiten der Schalldämpfung in der Lüftungs- und Klimatcehnik

Fan is a source of noise in ventilation and air conditioning systems. The article provides information about noise emission from different types of fans and the ways to attenuate it, using different types of silencers, including passive and active silencers, or combination of both.