It is an ideal material for air filtration. Depending on the filtering efficiency, the products are divided into three types (A

Character of Product

1.      Glass fiber air filter paper is made of super-fine glass fiber. It can meet the special requirements of the special air purification material.

2.      Widely used in the defense industry, electronic instrument, medical, food industry and textile industries, etc.

3.      Characterized by stable property, uniform fiber distribution, high dust holding capacity, high efficiency, low air resistance and high strength, etc.

4.      It is an ideal material for air filtration. Depending on the filtering efficiency, the products are divided into three types (ASHRAE, HEPA and ULPA).

Classification	Grade	Thickness	MD	CD	Stiffness	Filter Efficiency	Filter Resistance
ASHRAE	F6	0.35-0.38	1.2	0.5	1.8	20	10
	F7	0.35-0.38	1.2	0.5	1.8	40	20
	F8	0.35-0.38	1.2	0.5	1.8	60	50
	F9	0.35-0.38	1.2	0.5	1.8	80	80
HEPA	H10	0.35-0.38	1.2	0.5	1.8	95	90
	H11	0.35-0.38	1.2	0.5	1.8	99	110
	H12	0.30-0.32	1.2	0.5	1.8	99.9	130
	H13	0.30-0.32	1.2	0.5	1.8	99.95	150
ULPA	U14	0.30-0.32	1.2	0.5	1.8	99.995	180
	U15	0.30-0.32	1.2	0.5	1.8	99.9995	210

Glass Fiber Air Filter Paper(ASHRAE HEPA and ULPA )