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How long is the purification time of the laminar flow pass box generally set?
How long is the purification time of the laminar flow pass box generally set?In many places with strict requirements on cleanliness, such as pharmaceutical factories, laboratories, electronics factories, etc., laminar flow transfer windows are indispensable equipment. Laminar flow pass boxes are mainly used to transfer items between clean areas to prevent cross-contamination. The working principle of the laminar flow pass box is to generate vertical unidirectional airflow through the internal high-efficiency filter and fan so that the air in the transfer window is always kept in a highly clean state. When the items are placed in the transfer window, the clean air that has been filtered by high efficiency continuously blows over the surface of the items, taking away dust, bacteria, and other pollutants that may be attached, thereby achieving the purification of the items.So, how long is the purification time of the laminar flow pass box generally set? This requires consideration of multiple factors. The first is the size and degree of contamination of the items being transferred. If it is a smaller item and the contamination is light, the purification time can be relatively short, generally about 5 to 10 minutes. For example, an ordinary file bag or small tool, after proper cleaning, is placed in the transfer window, and purification for 5 to 8 minutes usually achieves good results. However, if it is a larger equipment component or a more seriously contaminated item, the purification time may be extended to 15 to 20 minutes or even longer. For example, a large mechanical part may have a lot of dust and oil attached to the surface, so it takes a longer purification time to ensure that it reaches the required cleanliness. Secondly, the specifications and performance of the transfer window must also be considered. The airflow velocity and filtration efficiency inside the transfer window of different specifications may be different, which will also affect the purification time. Generally speaking, the purification time of the transfer window with faster airflow velocity and higher filtration efficiency can be relatively shortened. For the question "How long is the purification time of the laminar flow pass box generally set", we can determine a more reasonable purification time through the following methods. First, refer to relevant industry standards and specifications to understand the recommended purification time under different cleanliness requirements. Second, conduct actual tests, gradually adjust the purification time according to the specific usage scenarios and item conditions, observe the purification effect, and determine the most suitable time setting. In short, the purification time of the laminar flow pass box needs to be reasonably set according to the actual situation to ensure that the items can meet the required cleanliness requirements during the transfer process, and provide reliable protection for production and experimental activities in various high-cleanliness places. |
