HAF large flow electrostatic air filter material: HAF air filter used polypropylene raw material injection of electrostatic technology, surface made the style of the tongue and grooves with open hole structure, can effectively using electrostatic attraction community is carrying particles, can produce the air flow rate and small pressure difference, make it filter with high efficiency, low resistance, 100% moistureproof, mouldproof and large amount of dust, which can effectively reduce energy consumption.