heat resistant air filter 1.Bag(pocket)filter,Panel frame, ... 2.Efficiency spec:G1~G4, F5~F9, H10~H13 heat resistant air filterShanghai SunMax Air Filter Materials Co., LtdEstablished in ... prodcucts have exported to dozens of countries, such as Japan, Malaysia, Brazil, Sweden, Australia, Vietnam, UAE and many other countries ... Range: Production of Air Filter and Filter Material. heat resistant air filter