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How to identify the color of medium efficiency bag filter?

Time: 2022-06-02

Medium-efficiency bag filters are very common in the use of central air-conditioning units, especially in the collective air supply system. Some primary filter systems are also equipped, and the annual market demand is still a lot. The key to its purchase includes many aspects. One is to look at parameters, such as the level of rated air volume, the size of dust holding capacity, and whether the test data is the same as the industry standard.


The medium-efficiency bag filter can be used for the intermediate-level filtration of the air-conditioning system to protect the lower filter in the system and the system itself. In places where the requirements for air purification and cleanliness are not strict, the air treated by the medium-efficiency filter can be directly sent to user. The aluminum frame effect bag filter (Pocket Filter) uses high-quality synthetic fiber meltblown cloth material or imported glass fiber as the filter material, aluminum alloy profile outer frame, and internal sprayed cold-drawn wire support frame. Generally, there are three kinds of filter materials, composite non-woven fabric, imported or domestic synthetic fiber meltblown cloth material and glass fiber. Each filter bag has a different color. The initial effects of G3-G4 are mostly white, the medium effect is F6 green, F7 pink, F8 yellow, and the sub-efficiency F9 is white and dark yellow.


The main material of the medium-efficiency bag filter is melt-blown cloth, and the melt-blown cloth is the core material of the mask. The melt-blown cloth mainly uses polypropylene as the main raw material, and the fiber diameter can reach 1-5 microns. (Pocket Filter manufacturer) There are many voids, fluffy structure, good wrinkle resistance, and ultra-fine fibers with a unique capillary structure increase the number and surface area of fibers per unit area, so that the meltblown cloth has good filterability, shielding, Thermal insulation and oil absorption. It can be used in air, liquid filter materials, isolation materials, absorbing materials, mask materials, thermal insulation materials, oil absorbing materials and wiping cloths and other fields.


There are many types of medium-efficiency filters, and the filters used in different occasions will be different. Therefore, it is also more important to know a little about the medium efficiency filter level. Medium-efficiency bag filter belongs to F series filter in air filter, F series filter is divided into bag type and non-bag type, among which bag type includes F5, F6, F7, F8, F9. If you want to choose to buy, you still need to consider the cleanliness required by the environment. The effect of using the initial effect, medium effect and high efficiency together is also better. Remember to choose an air filter brand manufacturer with guaranteed quality to buy.

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