THE 3M™ LIFEASSURE™ PSN SERIES NYLON FILTER CAPSULES ARE DESIGNED WITH HIGHLY RETENTIVE MEMBRANE FILTER ELEMENTS TO MEET THE EXACTING REQUIREMENTS OF PHOTORESIST AND ANCILLARY CHEMICAL APPLICATIONS AT POINT-OF-USE. UTILIZING ADVANCED PLEAT TECHNOLOGY, 3M™ LIFEASSURE™ PSN SERIES FILTER CAPSULES PROVIDE GEL AND PARTICLE REDUCTION IN ALCOHOLS, BASES, DEVELOPERS, ETCHANTS/STRIPPERS, AND SOLVENTS.