PPS bags are high-performance dust collection bags made primarily from polyphenylene sulfide (PPS) fibers. Due to their excellent resistance to high temperatures, corrosion, high filtration accuracy, and good dust cleaning performance, they are widely used in various industrial fields. In high-temperature flue gas emission environments such as coal-fired power plants, waste incineration plants, steel mills, and cement factories, PPS bags can effectively capture dust particles, meet stringent environmental emission standards, and are particularly suitable for complex working conditions containing acidic gases (such as SO2, SO3) and alkaline dust. Additionally, PPS bags can also be used in flue gas purification systems for industries like chemicals, metallurgy, and coking, ensuring stable equipment operation and extending service life. They are one of the key materials for achieving industrial dust emission standards.Facing biomass boiler flue gas with moisture and potassium, it avoids filter bag caking due to its low moisture absorption rate and dimensional stability, maintaining a constant air permeability. The exhaust purification system for large diesel generator sets uses PPS fabric bags, which can withstand high temperature pulsations and salt particles, reducing PM2.5 emissions. In pharmaceutical spray drying towers, it also recovers high-value pharmaceutical powder with food-grade surface smoothness, ensuring both filtration accuracy and resource recycling.Non-ferrous metal smelting flue gas contains fluorides with significant temperature fluctuations. The PPS filter bags blended with ultra-fine PTFE fibers enhance the fluorine resistance by over three times. The strength retention rate after 168 hours of aging in a 1000ppm HF environment remains at 88%; the film-coated pore size is 0.15μm, providing a filtration efficiency of ≥99.99% for sub-micron metal oxide dust; the surface is treated with conductive yarn weaving, resulting in a resistance of <10?Ω, fully meeting the anti-static requirements for explosive dust environments; it maintains a stable pressure difference of ≤900Pa at high altitudes and low-pressure areas, ensuring continuous compliance with emission standards throughout the year for smelting furnaces.