Abstract The construction of the packaged air conditioner for cleaning operating room may have two types：the blower located at the front or at the back．The function，pressure distribution in the conditioner and the energy comsumption of thess two types had analysed and showed US the conclusion that the blower located at the back is better than the front．Taking the adventage of all of the two types．the authors suggest a new type of double blowers in the packaged air conditioner．
