... ,crossflow AL core 4. capacity:150-10000m3/h fresh air ventilator For room fresh air handling unit.Keep the fresh of the room ... /h,1000 m3/h,1500 m3/h,2000 m3/h,2500 m3/h,3000 m3/h,3500 m3/h,5000 m3/h,6000 m3/h,8000 m3/h,10000 m3/h ... and so on,for AC fan,total heat paper exchange core or sensible heat aluminium exchange core. fresh air ...