Manufacturer Model ANSI/PDA Target Categorya Pore symmetry and format Membrane Chemistry
Virus Filters Virus Filters Virus Filters Virus Filters Virus Filters
MilliporeSigma Viresolve NFR Large virus Asymmetric, triple layer pleated sheet Hydrophilic PES
Viresolve NFP Small virus Asymmetric, triple layer pleated sheet Hydrophilic PVDF
Viresolve Pro Small virus Asymmetric, double layer flat sheet Hydrophilic PES
Sartorius Stedim Biotech Virosart CPV Small virus Symmetric, double layer pleated sheet Hydrophilic PES
Virosart HF Small virus Asymmetric, single layer hollow fiber Hydrophilic PES
Pall Ultipor VF grade DV50 Large virus Symmetric, triple layer pleated sheet Hydrophilic acrylate-modified PVDF
Ultipor VF grade DV20 Small virus Symmetric, double layer pleated sheet Hydrophilic acrylate-modified PVDF
Pegasus grade SV4 Small virus Symmetric, double layer pleated sheet Hydrophilic acrylate-modified PVDF
Pegasus grade Prime Small virus Pleated sheet Hydrophilic PES
Asahi Kasei Planova 35N Large virus Asymmetric, single layer hollow fiberb Hydrophilic cuprammonium regenerated cellulose
Planova 20N Small virus Asymmetric, single layer hollow fiberb Hydrophilic cuprammonium regenerated cellulose
Planova 15N Small virus Asymmetric, single layer hollow fiberb Hydrophilic cuprammonium regenerated cellulose
Planova BioEX Small virus Asymmetric, single layer hollow fiber Modified PVDF
Common Prefilters Common Prefilters Common Prefilters Common Prefilters Common Prefilters
MilliporeSigma Viresolve® Shield N/A (0.2 µm) Flat sheet PES membrane surface modified via cross-linked polymeric sulfonic acid cation exchange chemistry
Viresolve® Shield-H N/A (0.2 µm) Flat sheet PES membrane surface modified via cross-linked mixed-mode chemistry
Viresolve® Prefilter N/A (0.1 µm nominal) Depth filter Composed of diatomaceous earth, cellulose fibers and a binder containing cationic imine groups
Sartorius Stedim Biotech Virosart Max N/A (0.1 µm) Pleated sheet Hydrophobic interaction
Pall Pegasus™ Protect N/A (0.2 µm) Pleated sheet Nylon , Not disclosed
Pegasus grade UL6 N/A Pleated sheet Hydrophilic acrylate-modified PVDF
Asahi Kasei Planova 75N N/A (75 nm) Asymmetric, single layer hollow fiber Hydrophilic cuprammonium regenerated cellulose