How often should the primary filter be replaced? What are the performance characteristics of the primary filter?

During the use of the primary efficiency filter, due to the continuous accumulation of dust and impurities accumulated during filtering, if the filter is not replaced for a long time, the filter itself will lose its filtering function and significance, and the accumulated dust will also cause secondary pollution to the air. Therefore, the filter needs to be replaced in a timely manner after a period of use. The replacement time depends on such factors as the amount of dust in the field of view, whether it is polluted and its severity. Generally, the primary filter needs to be replaced once within 3 to 6 months of use.

1、 Introduction to primary filter:

Due to its own performance, the primary filter is applicable to the primary filtration of the ventilation system, mainly used for filtration μ Dust particles above m. There are three types of primary filter: plate type, folding type and bag type. The outer frame materials include paper frame, aluminum frame and galvanized iron frame. The filter materials include non-woven fabric, nylon mesh, activated carbon filter material, metal mesh, etc. The protective mesh includes double-sided plastic sprayed iron wire mesh and double-sided galvanized iron wire mesh

Characteristics and application direction of primary efficiency filter:

Features: low price, light weight, good versatility and compact structure. The service life of medium efficiency filter and high efficiency filter can be well extended if they are used together with medium efficiency filter and high efficiency filter in scenes with high requirements on environmental cleanliness.

The primary efficiency filter is mainly used for prefiltration of air conditioning system, central air conditioning and central ventilation system, large air compressor, clean return air system, local high efficiency filtering device, etc.