| Filter bag material | Working temperature | Chemical properties | Application 1 | Application 2 |
| Polypropylene needle felt | up to 90 degree | Good for Acid and Alkali gas | Grain | High chemical gas and less temperature |
| Polyester needle felt | Up to 130 degree | Good for Acid and nomal for Alkali | Every Dust Collection | Temperature lower than 130 degree |
| Acrylic needle felt | Up to 130 degree | Good for Acid and Alkali gas | Every Dust Collection | Chemical stronger than polyester suitalbe |
| Nomex needle felt | UP to 200 degree | Good for Acid and nomal for Alkali | Asphalt | Cement dust |
| PPS (Polyphenylene Sulphide) Needle felt | Up to 190 degree | Good for Acid and Alkali gas. Bad for Oxygen | Coal fired dust gas | Sulphur |
| P84 (Polyimide) Needle felt | Up to 240 degree | Good for Acid and Alkali gas | Incineration | Temperature lower than 240 degree |
| PTFE (Polytetrafluoroethylene) needle felt | Up to 260 degree | Good for Acid and Alkali gas | Mixed Chemical gas | Temperature lower than 260 degree |
| Glass fiber woven bulk yarn | Up to 280 degree | Good for Acid and Alkali gas | Cement kiln | Coal fired dust gas |
| Glass fiber mixed needle felt | Up to 280 degree | Nomal for Acid and Alkali gas | Acid gas | Temperature lower than 280 degree |
