 
         
        | Main components | Polypropylene Microfiber | 
| Filter Grade | F5、F6、F7、F8 (EN779) | 
| Filter object | coarse dust and foreign matters ≥1μm | 
| Final resistance | 250Pa(suggestion) | 
| Flame retardant grade | F1(DIN 53438)、B1(GB/T 17591-2006) | 
| Temperature resistance | ≤80℃ | 
| Temp.short peaks | 100℃ | 
| Moisture resistance | ≤100% | 
| Model | Width (m) | Thickness (mm) | Weight | I.N.P (Pa) | Air permeability L/M²·S | Eff. (%) | Filtration Class | 
| RT-E05 | ≤1.6 | 1.0±0.2 | 50±5 | 2 | ≥3000 | 50 | F5 | 
| RT-E06 | ≤1.6 | 1.1±0.2 | 60±5 | 3 | ≥2800 | 65 | F6 | 
| RT-E07 | ≤1.6 | 1.2±0.2 | 80±5 | 5 | ≥2300 | 80 | F7 | 
| RT-E08 | ≤1.6 | 1.5±0.2 | 110±5 | 6 | ≥2000 | 90 | F8 | 
| Note: other specifications can be customized. | |||||||