What are the air pressure regulations in the operating room purification workshop project?2

Clean room engineering refers to the design and construction process of clean room. Cleanrooms are the foundation of pollution control. Particles, harmful air, bacteria and other pollutants in the air control the indoor temperature, cleanliness, indoor pressure and airflow speed within a certain range. There are requirements for all aspects of the purification project. In most purification projects, the indoor air pressure needs to be kept higher than the external air pressure. These air pressures refer to static pressures to prevent the intrusion of external contamination. This can be avoided if the inner is higher than the outer. In purification engineering, the air pressure difference generally maintains the following two principles. The first is that the pressure of the above-mentioned clean space is higher than that of the non-clean space, and the second principle is that the pressure of the space with high cleanliness is higher than the pressure of adjacent spaces with low cleanliness. In the purification project, the main factor to maintain the indoor and outdoor pressure difference is the fresh air volume. The fresh air volume refers to the air volume that can compensate for the leakage from the gap under this pressure difference. Therefore, the so-called pressure difference can be said to be the resistance between various gaps when the air volume leaks through the clean room, thereby preventing outdoor pollution sources from entering the room. Previous: What level of dust-free purification pharmaceutical cleanroom is the cleanest? Next：Five methods to control the pollution of food purification pharmaceutical cleanroom

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