How to determine the cleaning frequency of the air shower pass box?

The cleaning frequency of air shower pass box is affected by a variety of factors, mainly including the following aspects:
First, the use of environmental factors
Cleanliness requirements
In environments with high cleanliness requirements, such as dust-free workshops for semiconductor manufacturing and sterile drug production workshops, the cleaning frequency of the air shower pass box will be very high. Because even small amounts of dust or pollutants can have a serious impact on product quality. For example, in semiconductor chip production, in order to guarantee the accuracy and performance of the chip, the pass box may need to be cleaned every day or even every shift (if it is multi-shift production).
For some industries with relatively low cleanliness requirements, such as ordinary food processing workshops (non-sterile product processing), the frequency of cleaning can be appropriately reduced, and a comprehensive cleaning may be conducted once a week to meet the basic requirements.
Ambient air quality
If the air shower pass box is installed in areas with poor air quality, such as near construction sites, traffic arteries or dusty industrial plants, its surface and interior are easy to accumulate dust. In this case, the appearance of cleaning may need to be simple wiping every day, the frequency of internal cleaning and filter cleaning will also be increased accordingly, and it may be necessary to check and clean the filter every 2-3 days to ensure its normal filtration and purification function.
On the contrary, if it is installed in an environment with good air quality, such as inside a building with an air purification system and away from the source of pollution, the cleaning cycle can be extended appropriately.
Second, the use of frequency factors
Number of material transfers
The air shower pass box is used most frequently when material transfer is carried out. If in a production workshop or laboratory, material transfer is frequent, such as in the packaging workshop of a pharmaceutical factory, it is necessary to constantly transfer packaging materials, finished drugs, etc., between different areas through the transfer window, then the basic cleaning should be carried out after each transfer, such as cleaning scattered material residues. The appearance cleaning can be carried out every day or every few days according to the actual situation.
For less use of transfer Windows, such as in some small research and development laboratories, only occasionally transfer experimental samples, the cleaning frequency can be reduced, the internal cleaning can be simply cleaned after each use, and the appearance cleaning can be carried out once a week or so.
Frequency of air shower
Each air shower process will make the air flow inside the pass box, which may drive impurities such as dust to circulate inside. If the number of air showers is a lot, then the internal filter and the inner wall are more likely to accumulate dirt. Therefore, for the transfer window with a high frequency of air shower, the filter cleaning may need to be carried out once a week, and the inspection and cleaning of the internal air shower system (including fans, air ducts, nozzles, etc.) also needs to be more frequent, such as a comprehensive inspection and cleaning every month.
Third, the characteristics of the equipment itself
Filter system performance
Some advanced air shower pass boxes are equipped with an efficient filtration system that can effectively filter dust and impurities over a longer period of time. For this type of equipment, the frequency of screen cleaning can be relatively low. However, if it is a pass box with general filtering performance, in order to ensure its filtering effect, the filter needs to be cleaned more frequently, and it may need to be checked and cleaned once every 3-4 days.
Internal structure design
The air shower pass box with reasonable design, smooth internal structure and easy to clean will be more convenient to clean, and the cleaning frequency can be determined according to normal conditions. However, if the internal structure is complex and there are many nooks and crannies that are easy to hide dirt, then the cleaning frequency should be appropriately increased, and more careful when cleaning to ensure that these hard-to-reach places can also be cleaned.