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Is the replacement cycle of different types of HEPA filters the same?
Is the replacement cycle of different types of HEPA filters the same?Different types of high-efficiency filter replacement cycles are usually not the same, the following are some common types of high-efficiency filters and their replacement cycle characteristics:There's a diaphragm HEPA filter The structure is characterized by a partition between the filter material, forming a plurality of independent filtration units, a large filtration area, relatively low resistance, and can accommodate more dust. It is generally used in places with high requirements for air cleanliness, such as hospital operating rooms and clean workshops of pharmaceutical factories. Under normal use, the replacement cycle is generally 1-2 years. However, in some environments with more serious pollution or frequent use, it may be necessary to shorten the replacement to 6-12 months. High-efficiency filter without partition Folding paper structure, through a special origami process to increase the filter area, has the advantages of small volume, lightweight, and easy installation, but the dust content is smaller than the filter with separator. It is often used in electronics factories, food factories, and other places that have certain requirements for cleanliness. Its replacement cycle is usually around 6-18 months. If in the clean room, personnel and equipment flow frequently, or the surrounding environment is dusty, it may need to be replaced in 6-12 months; In a relatively clean environment, it can be extended to 12-18 months. Combined high-efficiency filter Usually, the filter material with different filtration efficiency is combined to form a multistage filtration structure, which can more effectively intercept the particles of different sizes, the filtration effect is good, and the dust capacity is larger. It is commonly found in some special places with extremely strict air quality requirements, such as aerospace laboratories and precision instrument manufacturing workshops. Due to its superior performance, under normal maintenance and use conditions, the replacement cycle can reach 2-3 years. However, if the use environment is harsh, it may also need to be replaced in advance to 1-2 years. Ultra-high efficiency filter It can achieve very high filtration efficiency for particles with particle sizes of 0.1-0.2 microns, which is mainly used in dust-free workshops with high cleanliness requirements, such as semiconductor chip manufacturing workshops. The replacement cycle of the ultra-high efficiency filter is generally short, usually 6-12 months. This is because its filtration accuracy is very high, it is easy to be blocked by small particles, and once blocked, it has a greater impact on the entire clean system. In addition, even if it is the same type of high-efficiency filter, there may be differences in the quality and performance of products from different manufacturers, resulting in different replacement cycles. Therefore, in actual use, it is necessary to determine the replacement cycle according to the specific performance parameters of the filter, the use environment, and the manufacturer's recommendations. |
