High-efficiency filters can be divided into: high-efficiency filters with partitions and high-efficiency filters without partitions. So what is the difference between them?
1. The filter with partitions is made of ultrafine fiber as filter material, offset paper and aluminum foil as partitions, and is glued with a wooden frame or aluminum alloy frame. It has high filtration efficiency. The advantages of low resistance and large air volume. At present, double-adhesive paper is mostly used as the partition board. The purpose is to prevent the partition board from shrinking due to the influence of cold, heat, dryness and humidity, thereby dispersing particles. However, when the temperature and humidity change, the partition paper may emit larger particles, causing the cleanliness test of the clean workshop to fail. It is suitable for low-level non-unidirectional flow projects and various purification equipment and clean workshops. Among filters with partitions, paper partition filters are used in ordinary clean environments, while aluminum partition filters are mainly used in high temperature or high humidity environments. The air volume with partitions is relatively large, and the efficiency can only be achieved. It can be used as a high-temperature-resistant filter material without strict requirements without partitions.
2. The filter without partitions removes the corrugated partitions in the traditional structure and uses ultra-fine glass fiber as the filter material. Hot melt adhesive serves as the partition of the filter element and is assembled with the outer frame of each material. Suitable for strict one-way flow and high-level non-unidirectional flow clean room projects. Nowadays, Class A clean rooms generally use partition-less filters, and FFU is also equipped with partition-less filters. Compared with the filter with partitions, it has the advantages of small size, light weight, compact structure, reliable performance, easy installation, stable efficiency, and uniform wind speed under the same air volume. The partition-less design can achieve high efficiency with low resistance, thereby reducing operating costs. In particular, the designed hot melt adhesive can ensure the same fold spacing, ensure the passage of clean airflow, and achieve high dust holding capacity at the same time, extending the service life. , making full use of the filter media throughout the depth of the filter. Under the conditions of the same size, the ventilation volume and the dirt holding capacity are different, no partition > with partition. 
What are the advantages and differences between filters with partitions and filters without partitions, and where are they suitable for each?
Article link: Pharmaceutical Network http://www.zyzhan.com/tech_news/detail/42428.htm
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