In order to enable centralized oxygen supply a healthy development,this paper introduces five kinds of mistakes in the application of centralized oxygen supply technique.

Oxygen is used broadly in different levels of hospital in the whole country. The method of oxygen supply system changes from bottled, liquid to machine-made. The theories of these methods are introduced, and the danger of conflagration among these methods are especially analyzed and compared. To ensure the fire control, precautions are established so as to serve hospital better.

This article introduces the performance, merits and shortcomings of several air conditioning systems employed in HBO chamber. The improvement methods of this system are also recommended.