It is comprised primarily of glass fiber produced by a wet laid process which is similar to that used in the production of paper. It has the characteristics of good isotropy, uniform pore size distribution, small quantitative deviation, heat resistance, flame retardant, water resistance, large pollution load and so on. Our offerings rang from various ASHRAE grades (F6-F9), HEPA grades (H10-H14) to ULPA grades (U15-U16) with exceptional dust holding performance and provide with the highest available efficiency at a minimal resistance to air flow. It's available in a laminated form to meet special air filtration requirements.
| Class | Grade | Efficiency | Resistance | Tensile Strength | Thickness | Basic Weight | Stiffness |
| HEPA 0.3mm @5.3cm/s | H14 | ≥99.995% | ≤420Pa | 1.0-1.25KN/m | 0.33±0.02mm | 74±4g/m2 | mg≥1000 |
| H13 | ≥99.97% | ≤330Pa | 0.9-1.20KN/m | 0.33±0.02mm | 74±4g/m2 | mg≥1000 | |
| H12 | ≥99.8% | ≤260Pa | 0.9-1.20KN/m | 0.33±0.02mm | 74±4g/m2 | mg≥1000 | |
| H11 | ≥98% | ≤180Pa | 0.9-1.20KN/m | 0.33±0.02mm | 74±4g/m2 | mg≥1000 | |
| H10 | ≥94% | ≤120Pa | 0.9-1.20KN/m | 0.33±0.02mm | 74±4g/m2 | mg≥1000 | |
| ASHRAE 0.4mm @5.3cm/s | F9 | ≥95% | ≤80Pa | 0.9-1.15KN/m | 0.33±0.02mm | 70±4g/m2 | mg≥900 |
| F8 | ≥90% | ≤60Pa | 0.9-1.15KN/m | 0.33±0.02mm | 70±4g/m2 | mg≥900 | |
| F7 | ≥80% | ≤40Pa | 0.9-1.15KN/m | 0.33±0.02mm | 70±4g/m2 | mg≥900 | |
| F6 | ≥60% | ≤25Pa | 0.9-1.15KN/m | 0.33±0.02mm | 70±4g/m2 | mg≥900 |
Q 1, Are you factory or trading company .
A ,We are a specialized manufacturer of filter paper in China ,we have our own brand .
Q 2, Can I make a OEM order ?
A,We can supply different sizes ,our products can be customized .
Q 3. ,Please let us know your payment term ?
A , TT ,LC ,DA, and DP etc ,
Q 4. What about your packages ?.
A , Carton box with pallet .
Q 5 .May I have one sample before the order ?
A, The samples are free of charge for delivery .
Q 6 , Could you please show us the delivery time ?
A , Within 2 weeks after confirming the PI .
