Using ultra-fine fiberglass filter paper, it is made by combining multiple non partition filter elements and strictly sealing them, with efficiency covering F7 to H13. It has the characteristics of large filtration area, low resistance, long service life
| Outer frame | Galvanized frame/stainless steel/aluminum frame | 
| sealant | PU polyurethane adhesive | 
| sealing rubber strip | EVA/PU | 
| partition | Hot melt adhesive | 
| Optional thickness (mm) | 220/292, etc | 
| Using the highest temperature | 70℃ | 
| External dimensions | Frame body | filter area | Rated air volume | Rated initial resistance at different efficiencies | Suggested final resistance | |||
| L长*W宽*D高 (mm) | ㎡ | m³/h | F8 | E10 | H13 | H14 | (Pa) | |
| 2V | 5.4 | 850 | 110 | 180 | 220 | 280 | Initial resistance 2-2.5 times | |
| 305*610*292 | 2v | 10.8 | 1700 | 110 | 180 | 220 | 280 | Initial resistance 2-2.5 times | 
| 610*305*292 | 4V | 11 | 1700 | 110 | 180 | 220 | 280 | Initial resistance 2-2.5 times | 
| 610*610*292 | 4V | 22 | 3400 | 110 | 180 | 220 | 280 | Initial resistance 2-2.5 times | 
Remarks: The resistance values are different at different wind speeds. Special dimensions and specifications can be customized according to customer requirements
| ASHRAE52.2 | EN779 | 
| MERV14 | F8 | 
| MERV15 | F9-E10 | 
| MERV16 | E11-E12 | 
| MERV17-18 | H13 | 
| MERV19-20 | H14 | 

