The special-shaped air filter is a customized air filter, which selects PP & PET filter media according to the specific application needs. Media is pleated and then sealed into a plastic frame, or directly using PET edge sealing. PP & PET filter media is a common combination of filter materials, usually composed of polypropylene (PP) and polyester (PET) fibers. This combination provides good filtration performance durably and stably. Media is pleated to increase its surface area and improve filtration efficiency. This can also help to improve the performance of the shaped air filter and extend its service life.

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