H13/H14 Class 100 cleanroom specific high-efficiency air filter screen

Description :

  The high-efficiency filter is the core terminal filtering component in air purification systems, mainly used to capture tiny particles of 0.3 microns or more in the air, such as dust, pollen, bacteria, and aerosols. This category is widely used in cleanroom environments with extremely high cleanliness requirements, such as Class 100 and Class 1000 cleanrooms. It can effectively solve the problem of excessive suspended particles in indoor air and ensure the sterile and dust-free state of production or experimental environments. The efficient filters of H13 and H14 levels represent the high standards of current air filtration technology, suitable for key working conditions such as semiconductors, pharmaceuticals, precision electronics, and hospital operating rooms. They are the last line of defense to maintain the cleanliness standards of the space. Sichuan Chengdu Efficient Filter  Sichuan Chengdu ultrafine fiberglass high-efficiency filter; Sichuan Chengdu H13H14 hundred level high-efficiency filter

  This high-efficiency filter usually uses ultra-fine glass fiber filter paper as the filtering medium, combined with hot melt adhesive or sealant for frame sealing. The outer frame material is mostly aluminum alloy, galvanized sheet or stainless steel to ensure structural strength and corrosion resistance. The filtration efficiency of H13 level reaches 99.99% for 0.3 μ m particles, while that of H14 level is over 99.995%, which complies with relevant national standards such as EN1822 or GB/T13554. The product undergoes strict scanning and testing one by one to ensure no leakage. The initial resistance is usually between 200-250Pa, and it runs stably at rated air volume. Some models support high temperature and high humidity environments, and the folding density of filter paper has been optimized to provide a larger dust holding capacity and longer service life while ensuring filtration efficiency.

  When selecting, it is necessary to clearly distinguish between H13 and H14 levels. H14 is suitable for cleanrooms with stricter particle control at level 100, while H13 is commonly used for end filtration in cleanrooms at level 1000 or 10000. The purchaser should pay attention to the positive and negative tolerances of installation dimensions. Common specifications such as 610 × 610 × 69mm or 592 × 592 × 292mm should be matched with the original air duct or static pressure box interface. If the environmental humidity is high, hydrophobic filter paper or specially treated moisture-proof high-efficiency filter screen should be selected to avoid a sudden increase in resistance or damage to the filter paper after moisture absorption. In addition, it is necessary to confirm whether the material of the outer frame is compatible with the indoor chemical environment to prevent corrosion and seal failure, which may lead to leakage risks.

  When installing high-efficiency filters, it is necessary to ensure the sealing between the frame and the installation holes. It is recommended to use liquid tank sealing or gasket compression methods, and conduct PAO leak testing after installation to verify the installation quality. In daily maintenance, the final resistance of the filter should be regularly monitored. When the initial resistance reaches twice the initial resistance or the specified limit, it should be replaced in a timely manner. Do not attempt to clean and reuse it to avoid damaging the fiber structure of the filter paper and causing a decrease in efficiency. Common faults include frame leakage, filter paper damage, or abnormally high resistance, which are usually caused by transportation damage, improper installation, or failure of the pre filter. A regular inspection mechanism should be established to record pressure difference changes and ensure the continuous and stable operation of the purification system.

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