YWF series cartridges filter media is a hydrophilic PTFE membrane, being able filter low-concentration polar solvent. They have universal chemical compatibility, applicable to sterilization of such solvents as alcohols, ketones, and esters. At present, they are widely applied in pharmacy, food, chemical industry, and electronics. YWF cartridges show excellent heat resistance, they can be repeatedly used in online steam sterilization or high-pressure disinfection. YWF cartridges also have high interception efficiency, high guarantee, and long service life.