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How often should the HEPA air filter of the anti-static ultra-clean workbench be replaced?
How often should the HEPA air filter of the anti-static ultra-clean workbench be replaced?The replacement cycle of the high-efficiency air filter (HEPA) of the anti-static ultra-clean workbench is affected by factors such as the use environment, the frequency of use, and the quality of the filter, generally speaking, it is about 12-24 months, but the specific situation needs specific analysis, the following is a detailed introduction:Use environment An environment with high cleanliness requirements: such as in electronic chip manufacturing workshops, high-end biological laboratories, and other places with high cleanliness requirements, the content of dust particles and other pollutants in the air is relatively low, but the filtration effect is strict, and the high-efficiency air filter may need to be replaced in 12-18 months to ensure that it can always provide a hundred or even higher cleanliness of the air environment. Ordinary industrial environment: In ordinary electronic production workshops, general laboratories, and other environments, there are relatively many pollutants such as dust particles in the air, which may increase the load of the filter, and it is usually recommended to replace it every 18-24 months. Frequency of use High-frequency use: If the anti-static ultra-clean workbench is used continuously for a long time every day, such as in large-scale electronic production enterprises, the equipment runs more than 8 hours a day or even 24 hours of uninterrupted operation, then the filter medium of the high-efficiency air filter will be clogged faster by pollutants, generally 12-18 months need to consider a replacement. Low-frequency use: For some places with low frequency of use, such as some laboratories in schools, the use time may only be a few hours per week, in this case, the service life of the high-efficiency air filter will be relatively long, and it may be about 24 months before it needs to be replaced. Filter Quality High-quality filter: Good quality efficiency air filter, the use of more advanced filtration materials and production processes, with higher filtration efficiency and better dust capacity, can maintain good filtration performance for a long time, the replacement cycle may be extended to about 24 months. Ordinary filter: In some general quality filters, the filter material and structure may be relatively poor, under the same conditions of use, maybe more easily blocked, the filtration effect will decline faster, and may need 12-18 months to replace. In actual use, you can also judge whether the high-efficiency air filter needs to be replaced by observing the wind speed of the ultra-clean workbench, the differential pressure meter reading, and the cleanliness detection. If the wind speed decreases significantly and cannot be restored by adjustment, the pressure difference meter shows that the pressure difference increases significantly, or the cleanliness is not up to the standard after detection, even if the use time does not meet the above standards, the high-efficiency air filter should be replaced in time. |
