1. Filtration of impurity oil in the air of various air compressors;

2. Preparation of sterile air in beer, pharmaceutical and wine-making industries;

3. Filtration of high-pressure air in aviation and transportation industries;

4. Combination and purification of gases in chemical fiber industry;

5. Dry dedusting of acidic gases in pharmaceutical industry;

6. Filtration of dry gases and catalytic gases in petrochemical industry;

7. Dedusting of low-temperature gases and flue gas in environmental protection industry.