... 2.Wind volume: 2000 m3/h 3.Residual pressure:200Pa 4.Power: 980 W 5. Noise level:45dB(A) Product:KRV ... : 1.Indoor and outdoor two-ways ventilation, equivalent exchanger of fresh air; 2.Low noise desigh, corrosion and high tempreture resistant; 3 ... -80%Use scope:home,meeting room,office,industry, hospitail,school,bus station,supermarket,shopping mall,club,hotal and so on.ModelAir ...