 
         
        | Main components | Polypropylene Microfiber (PP) + polyester staple fiber (PET) | 
| Temperature resistance | ≤100℃ | 
| Temp.short peaks | 120℃ | 
| Moisture resistance | ≤100% | 
| Model | Filtration Class | Efficiency | Weight | I.N.P (Pa) | Material | Remark | 
| RT-SZ04 | G4 | - | 50±2 | 3±2 | PP+PET | Used with melt blown | 
| RT-SZ05 | F5 | 45 | 40±2 | 5±2 | PP+PET | Use alone | 
| RT-SZ06 | F6 | 65 | 50±2 | 8±2 | PP+PET | Use alone | 
| RT-SZ07 | F7 | 80 | 65±2 | 10±2 | PP+PET | Use alone | 
| RT-SZ08 | F8 | 90 | 70±1 | 14±2 | PP+PET | Use alone |