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How often should hepa high efficiency air filters be replaced?
How often should hepa high efficiency air filters be replaced?hepa high-efficiency air filters in the clean zone are very common, after a long time of use, it is necessary to replace their equipment, how to replace the clean zone high-efficiency filters, the following is the hepa high-efficiency air filters replacement process and attention, the details are as follows:Before the installation of high-efficiency filters, the clean room must be fully cleaned and wiped clean, and if there is dust accumulation inside the purified air conditioning system, it should be cleaned and wiped clean again to achieve clean requirements. If the high-efficiency filter is installed in the technical mezzanine or ceiling, the technical mezzanine or ceiling should also be fully cleaned and wiped clean. After the clean room and purified air conditioning system reach the clean requirements, the purified air conditioning system must be tested and run continuously for more than 12h, clean and wipe the clean room again and install the high-efficiency filter in the clean area immediately, the transportation and storage of the high-efficiency filter should be set aside by the direction of the manufacturer's logo, and the transportation process should be carried out lightly to prevent violent vibration and collision. Before installation, the packaging must be unpacked at the installation site to check the appearance, including whether the filter paper, sealant, and frame are damaged, whether the edge length, diagonal and thickness dimensions meet the requirements, whether the frame has burrs and rust spots (metal frame), whether there is a product certificate of conformity, and whether the technical performance meets the design requirements. Then hepa high-efficiency air filter leak detection, after inspection and leak detection qualification should be installed immediately, installation should be based on the resistance size of each filter for reasonable deployment, and installation of clean area high-efficiency filter frame should be flat. The allowable deviation of the installation frame flatness of each high-efficiency filter is not more than 1mm. |
