The working principle of the ordinary pass box
2024.08.07
The working principle of the ordinary pass box is as follows:
Ordinary pass box are mainly used for the transfer of items between different clean areas.
The doors on both sides of the pass box cannot be opened at the same time, and an interlocking mechanism is usually used. When the door on one side is opened, the door on the other side will be locked and cannot be opened.
After the items are placed in the pass box, close the door on this side, and then disinfect or purify the items. Common treatment methods include ultraviolet irradiation, spray disinfection, etc.
After the treatment is completed, the personnel in the clean area on the other side can open the door to take out the items.
This can effectively prevent cross-contamination of air between different clean areas and ensure the cleanliness of the clean area.
For example, between workshops of different clean levels in a pharmaceutical factory, ordinary pass boxs can realize the transfer of materials without affecting the cleanliness. For example, between the aseptic packaging area and the general processing area of a food processing plant, the pass box can ensure that the food is not contaminated during the transfer process.
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