Folding effect of coarse filter frame using wood fiber board, moisture-proof water-resistant virgin pulp quality is light, convenient installation, appearance is bright and clean and beautiful; Internal filter material with composite frame, compact design or adhesive technology, to ensure the filter sealing, prevent leak; Internal metal parts by plastic spraying or galvanized processing, to prevent the rust of the metal.Non-woven filter material out of the surface wind through finishing processing, prevent the non-woven fiber fracture distributing cause secondary pollution; The casing outside the metal product filter material conversion, can be clean easily, the casing outside the reusable, air conditioning operation cost can be saved; At the beginning of filter resistance is low, the capacity of large amount of dust.

  Purpose: 1, the common central air conditioning and ventilation system; Computer room and other special constant temperature and humidity of the air conditioning unit; Air compressor and gas turbine pre filtration system; Hepa filter filtration system, etc.

    Folding coarse filter can filter directly, simple process, good air permeability, uniform and stable precision, not leak, regeneration, regeneration speed is quick, convenient installation, high efficiency, long service life