In the past, it was generally believed that outdoor dust bacteria may sneak into the operating room through the gap of the window, and the operating room does not rely on natural use, so windows are generally not set in the design of clean operating room. However, recent psychological studies have shown that in a windowless clean operating room, medical staff and patients are prone to depression, imprisonment and other bad feelings due to their complete isolation from the outside world, which is not conducive to the smooth progress of the operation (especially the large-scale operation with a long time). Therefore, the author believes that the clean operating room can properly set up windows according to the actual situation to improve the environmental atmosphere in the operating room. At the same time, it is conducive to the outdoor medical staff to understand the operation situation in time and communicate with the indoor staff without entering the room. The windows should be double-layer windows with good dust-proof and sealing performance, and the windows should be flat with the surface of the inner wall.
The setting of the door position of the operating room is closely related to the air flow direction and the operating table. In the horizontal laminar flow operating room, the door position is set in the downwind direction, and in other operating rooms, the door is set in the direction of the patient's feet, which can prevent the influence of the flow of people in and out on the patient. In order to avoid affecting the air flow organization due to the opening and closing of the door leaf, each door of the clean operating room should adopt automatic induction type or foot touch switch type electric sliding door; At the same time, each door shall be equipped with a delay device to avoid the phenomenon of "operation with the door open" due to frequent access of personnel during operation.
The color tone of various operating rooms is ideal for the green system. Because green and red of blood complement each other, it can reduce the eye fatigue of medical staff and promote the psychological calm of patients. In addition, attention shall be paid to the coordination of the color of the auxiliary embedded parts on the wall and the wallboard. The color of the floor shall not be the same as that of the wall, which can be changed to distinguish the interface and enrich the indoor color.
维持洁净手术室室内的高洁净度，降低术后感 染率应是一个全过程控制的系统工程，除本文所及外，还应从手术部的洁污分区、流线控制、净化空调设计等方面全 面考虑。本文仅就洁净手术室装修材料和构造做法的选择提出了一点意见，祈望能对日后的设计和施工有所裨益，而其他控制环节在这里就难以顾及了。
Maintaining the high cleanliness of the clean operating room and reducing the postoperative infection rate should be a systematic project of the whole process control. In addition to what is mentioned in this paper, we should also consider the cleaning and pollution zoning, streamline control, purification air conditioning design and so on. This paper only puts forward some opinions on the selection of decoration materials and structural practices of clean operating room, hoping to be beneficial to the design and construction in the future, while other control links are difficult to take into account here.