Stainless steel filter sleeves are widely used in water treatment, effectively removing impurities and particles from water to enhance water quality. By adjusting the precision, they can meet various water quality requirements. In some cases, stainless steel filter sleeves are specially treated to have a certain static charge on their surface. When dusty air flows through, dust particles can acquire an opposite charge due to friction with the filter sleeve surface or other reasons, thereby being attracted and firmly adhered to the sleeve's surface by the static charge, improving filtration efficiency. Additionally, some dust particles may carry an electric charge themselves, interacting with the static charge on the filter sleeve surface, which enhances the filtration effect.