High-efficiency filters are mainly divided into: high-efficiency filters with partitions, high-efficiency filters without partitions, and V-BED high-efficiency filters.
The partitionless filter uses hot melt glue to replace the aluminum foil with the partition filter to separate the filter material. Because there is no partition, a 50mm thick non-partition filter can achieve the performance of a 150mm thick partition filter. The HEPA with a 90mm thick frame can achieve 1.3 times the air volume of the SPAN 150mm thick standard resistance type and twice that of the SPAN 150mm thick standard resistance type under the same filter area and filtration efficiency. It can meet today's stringent requirements for air purification in various spaces, weights, and energy consumption.
HEPA filter with partition
The partitioned high-efficiency filter is made of ultrafine fiber as the filter material, high-quality kraft paper hot-rolled forming, or offset paper, aluminum platinum as the partition board, and wooden frame or aluminum alloy frame glue. It has high filtration efficiency. The advantages of low resistance and large air volume. High efficiency filters with partitions mostly use double-sided coated copperplate paper as the partition plate, the purpose is to prevent the partition plate from shrinking under the influence of cold, heat, dry and wet, thereby dispersing particles. It is suitable for low-level non-unidirectional flow projects and various purification equipment and clean workshops. Among the partition filters, aluminum partition filters are mainly used in high temperature or high humidity environments, and paper partition filters are used in ordinary clean environments. The air volume of the partition is relatively large, which can be used as a high temperature resistant filter.
V-shaped dense pleated filter
Used in general ventilation systems, it has the characteristics of large filtering area, low resistance and long service life. It can be used as a pre-filter of a high-efficiency filter, thereby effectively extending the service life of the high-efficiency filter.