It's mainly used for filtering air suspended particles under 0.3um, as the end of a variety of filtration system filtration;
Using ultra-fine glass fiber filter material, hot sol as the separator, special aluminum frame, polyurethane two-component sealant, closed-cell sponge sealing strip, spray plastic steel mesh uniform flow plate after strict process refined;
Pleated filter material can form ventilation airflow channel, increase the filter material area and air volume, reduce the resistance of the air supply;
Has the advantages of high filtration efficiency, low resistance, large dust capacity, good uniformity of wind speed, strong versatility, convenient installation, etc.;
Temperature resistance 80 C. Humidity resistance 80%.
Each no clapboard filter before the factory after one by one performance test, ensure the performance index of the air filter; And can according to the user request, manufacture each kind of non-standard specification size and the filtration request air filter.

Feature	Pre-Air Filter	HEPA Air Filter
Efficiency	Low (captures large particles)	High (captures particles ≥0.3 microns)
Purpose	Protect downstream filters	Provide final-stage air purification
Material	Coarse mesh, foam, or synthetic fibers	Dense fiberglass or synthetic fibers
Cost	Low	High
Maintenance	Washable/reusable, easy to maintain	Requires replacement, non-reusable
Applications	HVAC, pre-filtering for air purifiers	Clean rooms, hospitals, air purifiers

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