In the 21st century, people's living water bottles are getting better and better. However, the problem of environmental pollution is becoming more and more serious, which also has a great impact on our health. People need to breathe oxygen and exhale carbon dioxide. The machine room belongs to the place where people stay and work for a long time, and the allowable concentration of carbon dioxide is 1L / m2 (1.5g), The carbon dioxide exhaled by the staff in the machine room is about 30L (45g) per hour. Therefore, the amount of additional fresh air in the machine room is directly related to the impact of the hygienic conditions of the air in the machine room on human health. In order to improve the quality of indoor air and overcome the discomfort caused by staff operating in the machine room for a long time, such as hypoxia, dizziness, chest tightness and panic, that is, the so-called "air conditioning disease". In addition, due to the dust-proof requirements of the machine room, it is necessary to avoid external air from entering the machine room, and the sealing of the machine room must be well handled. Therefore, a fresh air system of the machine room is very necessary. The so-called machine room fresh air system is a set of independent system composed of main engine fresh air ventilator and pipeline accessories, which is very similar to the air conditioning system. Next, Xianji network editor will introduce in detail the function of the fresh air system in the computer room, the standard for installing the fresh air system in the computer room, how to change the ventilation times of the fresh air system in the computer room, the impact of the fresh air volume of the fresh air system in the computer room on the air conditioning purification system, the treatment method of the fresh air in the fresh air system in the computer room and the acceptance standard of the fresh air system in the computer room. Let's get to know!