... PXG ring blower 1. blowing dual-use generic or inspiratory gas source blower 2. compact structure, small size 3.ring ... low noise, it is using dedicated motor, sending anhydrous oil-free gas. It is mainly used for supporting devices, water treatment aeration ... , fish farming & raising, dust extracton, gas transmission, feeding, cllection etc. Model No.Power (KW)Rotation(r ...