Venefilter, develops depth filter Melt Blown (meltblown) absolute filter with 99.98% efficiency at a given micron for the most demanding applications. Using ultra fine fibers and controlled thermal bonds the filter retains the contaminant VFMB1 captured even at high differential pressures.Features Absolute retention FOTO56 Capacity 0.5 to 70 microns. FOTO56 Multi Zone Melt Blown (blown melt), depth filter with graduated pore structure for maximum particle retention. Thermally bonded fibers that allow high volumes and longer service life. Lot traceable filters come with certificate of conformity. Constructed from 100% polypropylene. All materials are listed by the FDA. All components meet USP Class VI criteria and are safe for use in pharmaceutical applications. Molding core for higher temperature and pressure capabilities. Free of surfactants, binders and adhesives.