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Pre Filter, 1).ISO/RoHS/SGS compliant, 2).Nontoxic, ordoless, 3)Small resistance,high effiiency - details see: https://www.machineto.com/non-woven-fabric-polyester-pre-filter-10219363

Model	Rated air velocity m/s	Efficiency			Resist ance Pa	Dust holding capacity g/m	Weight per sq.m	Thick ness mm	Porpose
		1um	2um	5um
ZF-NJ10	1	≥20	≥35	≥60	≤20	110	110	3±1	Panel-filter(G2)
ZF-NJ12	1	≥25	≥50	≥75	≤30	130	130	4±1	Panel-filter(G2)
ZF-NJ14	1	≥35	≥55	≥80	≤35	160	160	5±1	Panel-filter(G3),bag filter(G3)
ZF-NJ14A	1	≥35	≥55	≥80	≤35	160	160	5±1	Bag filter(G3)
ZF-NJ25	0.5	≥38	≥58	≥85	≤45	180	240	5±1	Panel-filter(G3)
ZF-NJ30	0.5	≥40	≥60	≥87	≤50	200	290	6±1	Panel-filter(G4)
ZF-NJ40	0.5	≥42	≥65	≥90	≤55	220	380	7±1	Panel-filter(G4)
ZF-BT10	1.5	≥13	≥30	≥50	≤15	110	100	10±1	Panel-filter(G2)
ZF-BT12	1.5	≥15	≥35	≥55	≤20	120	120	12±1	Rolled-filter(G2)

ZF Needle Punched Filter Fabric could be grouped into coarse, medium and high efficient filter fabrics.

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