The primary filter is mainly used to purify the fresh air inlet of the air conditioning system as a pre-filter to intercept large particle size particles in the atmosphere. The filter objects are suspended particles larger than 5μm, sedimentable particles above 10μm and various foreign bodies to prevent them from entering the system. It can be installed separately or stacked in front of the bag filter to protect the bag filter and extend its service life. The filter material is generally sprayed cotton, polyester non-woven fabric and polypropylene fiber. The structure is fluffy, ensuring a high dust accumulation rate and a larger dust capacity. Filter materials include non-woven fabric, glass fiber, nylon mesh, activated carbon filter material, metal hole mesh, etc.

        Use of primary filter: It is mainly used as a pre-filter at the fresh air inlet of the air purification air conditioning system, intercepting large particle size particles in the atmosphere. The primary filter is characterized by compact structure, small size, light weight, easy disassembly and low initial resistance.

        The specifications of primary filters include plate filters and bag primary filters. Judging from the material of the shell, there are paper frames, galvanized frames and aluminum frames, and the strength has gradually increased. The specifications of the primary filter also include the type and grade of the filter element. The regular ones are G4 efficiency primary filter and G3 primary filter! G2 level flat net filter! The filter material is folded into strong cardboard, the windward area is increased, and the air inlet dust particles are blocked by the filter material between folding and folding. It varies according to the filter media. The particle size it blocks ranges from 5um to 10um. The filtration efficiency is also different. The filter material is folded into a strong mold and cardboard. The windward area is increased, and the dust particles entering the air are blocked between folds and folds by the filter material. The clean air flows out evenly from the other side, so the air flow through the filter is warm and uniform. The one-time filter is suitable for the one-time filtration of the air conditioning system. It is mainly used to filter dust particles above 5um.

        If you need assistance purchasing filters or confirming filter size, please call +1 929-204-8922 (9-5 EST Monday-Friday) or email info@gdhaibei.com.